WO2008038734A1 - Feuille adhésive acrylique extrêmement conductrice de la chaleur - Google Patents
Feuille adhésive acrylique extrêmement conductrice de la chaleur Download PDFInfo
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- WO2008038734A1 WO2008038734A1 PCT/JP2007/068868 JP2007068868W WO2008038734A1 WO 2008038734 A1 WO2008038734 A1 WO 2008038734A1 JP 2007068868 W JP2007068868 W JP 2007068868W WO 2008038734 A1 WO2008038734 A1 WO 2008038734A1
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- WIPO (PCT)
- Prior art keywords
- monomer
- double
- conductive sheet
- acrylic
- sided adhesive
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- 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
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- 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
- C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
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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
- C08F220/00—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
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C08F220/00—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
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
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- C08F220/00—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
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—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
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- 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
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- 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
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/066—Copolymers with monomers not covered by C09J133/06 containing -OH groups
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- 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
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
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- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2431/00—Characterised by the use of 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 an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
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- C—CHEMISTRY; METALLURGY
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/016—Flame-proofing or flame-retarding additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
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- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
- C09J2400/263—Presence of textile or fabric in the substrate
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- 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
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- Y10T428/2804—Next to metal
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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
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- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
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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
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- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2631—Coating or impregnation provides heat or fire protection
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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
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- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2738—Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith
Definitions
- the present invention relates to an acrylic heat conductive sheet having double-sided adhesive properties, a printed circuit board, a heat sink, and a heat pipe using the same.
- an ordinary adhesive tape is basically an organic substance, and its thermal conductivity is 0.
- Patent Document 1 Japanese Unexamined Patent Application Publication No. 2006-089579
- Non-Patent Document 1 Chemical Handbook Revised 3rd Edition P809 (The Chemical Society of Japan Maruzen 1980)
- the present invention provides an acrylic thermal conductive sheet having high thermal conductivity and good adhesive properties.
- the gist of the present invention is as follows. [1] (a) Monomer: talylate or methacrylate having an alkyl group having 2 to 12 carbon atoms; (b) Monomer: an acrylic monomer represented by the formula (1) but different from the monomer (a), (C): polythiol, and (d): prepared from a raw material mixture containing inorganic powder, the content ratio of the inorganic powder in the raw material mixture is 30 to 70% by volume, and the maximum particle size of the inorganic powder A double-sided acrylic acrylic heat-conducting sheet characterized in that it is 5 to 70% of the thickness of the sheet produced.
- R represents hydrogen or a methyl group
- R represents an alkylene group
- R represents hydrogen
- R represents hydrogen or a methyl group
- R represents an alkylene group
- R represents hydrogen
- the (b) monomer contains acrylic acid, and the ratio of acrylic acid to the total of the combined (a) monomer and (b) monomer is 1 to 15% by volume.
- the content of the photopolymerization initiator is 0.04-2.0% by volume with respect to the total of the ⁇ monomer and the monomer (b).
- Double-sided adhesive attalinole thermal conductive sheet is 0.04-2.0% by volume with respect to the total of the ⁇ monomer and the monomer (b).
- a printed circuit board comprising the double-sided adhesive acrylic thermal conductive sheet according to any one of [1] to [;
- a heat sink comprising the double-sided adhesive acrylic thermal conductive sheet according to any one of [1] to [; 12].
- a heat pipe comprising the double-sided adhesive acrylic heat conductive sheet according to any one of [1] to [; 12].
- (a) Monomer in the present invention an acrylate having an alkyl group having 2 to 12 carbon atoms; Metatalylate is an alkyl ester of acrylic acid or methacrylic acid having 2 to 12 carbon atoms.
- monomers include, for example, ethyl acrylate, propyl acrylate, butyl acrylate, 2-ethyl hexyl acrylate, octino acrylate, isooctyl acrylate, decyl acrylate, decyl methacrylate And dodecyl metatalylate. Of these, 2-ethylhexyl acrylate and butyl acrylate are preferred.
- the monomer (b) in the double-sided adhesive acrylic heat conductive sheet of the present invention is an acrylic monomer that is represented by the formula (1) but is different from the monomer (a).
- R represents hydrogen or a methyl group.
- R represents an alkylene group, R is hydrogen or
- R alkylene group means ethylene group, propylene group, butylene group, etc.
- the monomer (b) acrylic acid, polypropylene glycol monotalylate having a repeating number of propylene glycol units of 12 or less, 4-hydroxybutyl acrylate, or a mixture thereof is particularly preferable.
- the (a) monomer used in the present invention has a function of constituting the main skeleton of the sheet of the present invention having adhesive properties, and the (b) monomer has a function of improving adhesiveness at high temperatures.
- the proportion of the monomer (b) in the monomer mixture obtained by combining the monomer (a) and the monomer (b) is preferably 1 to 20% by volume.
- the blending ratio of (a) + (b) is preferably 25 to 70% by volume in the monomer mixture including the constituent raw materials (a) + (b) + (c) + (d).
- the monomer (b) contains acrylic acid, and the proportion of acrylic acid in the monomer mixture of the monomer (a) and the monomer (b) is 1 to 15% by volume. . If it is less than 1% by volume, the cohesive force contribution effect due to acrylic acid is reduced, so the high-temperature holding power is lowered.
- the ratio of acrylic acid in the monomer mixture obtained by combining the monomer (a) and the monomer (b) is more preferably 3 to 10% by volume.
- the polythiol (c) used in the present invention represents a mercaptan compound having two or more mercapto groups (one SH), and is represented by formula (2), formula (3), formula (4), or formula (5).
- the average molecular weight means a weight average molecular weight.
- Z is an organic residue having m functional groups
- m is an integer of 2 to 6
- p and q are integers of 0 to 3.
- the polythiol whose organic residue Z is Formula (5), Formula (6), Formula (7), or Formula (8) is preferable.
- R represents an alkylene group such as an ethylene group, a propylene group or a butylene group, and v and w are
- the constituent raw material ratios of (a), (b) and (c) are as follows: (c) Is preferably in the range of 0.01 to 7.0% by volume, more preferably (c) is 0.04 to 5.0% by volume.
- (c) is less than 0.01% by volume, the molecular weight of the acrylic matrix constituting the sheet is increased and the adhesiveness is lowered, so that the high temperature holding power is lowered.
- (c) exceeds 7.0% by volume, the molecular weight becomes too small and the strength as a sheet becomes small, which also reduces the high temperature holding power.
- the double-sided adhesive acrylic heat conductive sheet of the present invention includes, in addition to the components (a), (b), and (c), a known polymerizable compound, a known polyfunctional bull compound, a polyfunctional acrylate, It can contain a copolymerizable crosslinking component such as a polyfunctional aryl compound.
- the double-sided pressure-sensitive adhesive acrylic heat conductive sheet of the present invention can be added with a known additive in an arbitrary amount as required, as long as there is no influence upon curing.
- additives include various additives for controlling viscosity and viscosity, other modifiers, anti-aging agents, heat stabilizers, and colorants.
- the curing method for preparing the double-sided adhesive acrylic heat conductive sheet of the present invention is a polymerization method such as thermal polymerization using a suitable thermal polymerization initiator or polymerization using a thermal polymerization initiator and a curing accelerator. It is possible to make it hard.
- thermal polymerization initiator an azo compound or an organic peroxide can be used.
- Useful azo compounds include 2,2'-azobisisobutyronitrile, 2,2'-azobis (2, 4-dimethylvaleronitrile), 2,2'-azobis (2-methylbutylnitrile) and the like.
- Useful organic peroxides include methyl ethyl ketone peroxide, cyclohexanone peroxide, acetylethyl acetone peroxide, 1,1, -di (tertiary butyloxy) cyclohexane, 2,2-di ( Tert-butinoliveroxy) butane, n-butinole 4,4-di (tertiary butinolevoxy) valerate, 2,2 di (4,4-di (tertiarybutylperoxy) cyclohexyl) propane, p Menthane Hyde Peroxide, Diisopropylbenzene Hyde Peroxide, 1, 1, 3, 3, —Tetramethyl Butyl Hyd Peroxide, Cumen
- Any suitable curing accelerator can be used as long as it is a known curing accelerator that reacts with the thermal polymerization initiator to generate radicals.
- Typical curing accelerators include tertiary amines, thiourea derivatives or transition metal salts.
- tertiary amines include triethylamine, tripropynoleamine, tributylamine, N, N dimethyl-p toluidine, and the like.
- Examples of the thiourea derivative include 2-mercaptobensimidazole, methylthiourea, sibutylthiourea, tetramethylthiourea, ethylenethiourea, and the like.
- the transition metal salt include cobalt naphthenate, copper naphthenate, and vanadyl acetylyl acetate.
- the double-sided adhesive acrylic heat conductive sheet of the present invention is preferably polymerized by photopolymerization with a suitable photopolymerization initiator from the viewpoint of curing reaction control.
- Suitable photopolymerization initiators are benzophenone, p-methoxybenzophenone, 4,4 bisdimethylaminobenzophenone, xanthone, thixanthone, black thioxanthone, m-chloroacetone, propiophenone, anthraquinone, benzoinmethinole.
- Ethenore benzoinethino ethenore, benzoisopropyl ether, benzoin butyl ether, benzyl, 2,2-dimethoxy-1,2-diphenylethane-1-one, acetophenone, 2,2-diethoxyacetophenone, 2 —Hydroxy-2,2—dimethylacetophenone, etc. Power is not limited to these.
- benzophenone is preferable.
- Inorganic powder used in the present invention is a metal oxide such as aluminum oxide (alumina) or titanium dioxide, a nitride such as aluminum nitride, boron nitride or silicon nitride, silicon carbide, aluminum hydroxide, etc. It can be used alone or in combination of several kinds of force S, which are not limited to these.
- a heat conductive sheet may be required to have flame retardancy, and a metal hydroxide such as aluminum hydroxide having a flame retardant effect is one of preferable heat conductive particles.
- the inorganic powder is preferably composed of alumina and aluminum hydroxide, which are preferred to aluminum oxide (alumina) and / or aluminum hydroxide in consideration of light permeability. It is particularly preferable to use it together.
- alumina and aluminum hydroxide are used in combination, the mixing ratio of alumina and aluminum hydroxide (alumina / aluminum hydroxide) is preferably 0.3 to 2.0 by volume.
- the mixing ratio of these inorganic powders is preferably 30 to 70% by volume.
- the content ratio of the inorganic powder is more preferably 50 to 65% by volume.
- the particle diameter of such inorganic powder particles needs to be controlled with respect to the thickness of the sheet to be produced, and the maximum particle diameter is in the range of 5 to 70% of the sheet thickness. Is preferred. If it is less than 5%, sufficient thermal conductivity cannot be obtained. On the other hand, if it exceeds 70%, unevenness is generated on the surface of the sheet, resulting in a decrease in adhesive properties.
- the maximum particle diameter of the inorganic powder particles is more preferably 10 to 70%, particularly preferably 10 to 60% of the sheet thickness.
- the double-sided adhesive acrylic heat conductive sheet of the present invention preferably has a thickness of 10 to 3000 m, particularly preferably 30 to 1000 m, and further has a thickness of 100 m.
- flame retardancy can be imparted by using (e): a flame retardant.
- a flame retardant As the flame retardant to be used, metal hydroxides and phosphates are preferred in consideration of environmental problems and photopolymerization. Halogen flame retardants have problems in terms of environmental impact, and phosphorous flame retardants have problems with photopolymerization because red phosphorus has low light transmittance.
- As the flame retardant aluminum hydroxide and organophosphorus compound Exolit OP-930 (manufactured by Clariant) are particularly preferable among metal hydroxides and phosphates.
- the aluminum plate is 60 ° C or more against lkg load. It is preferable to have a high temperature holding power of 80 ° C or higher.
- the reinforcing base material a glass cloth or a metal foil is preferable in consideration of the effect on cost and thermal conductivity. In particular, when a metal foil is used, a shielding effect against electromagnetic waves can be expected.
- the reinforcing metal foil copper foil, aluminum foil, and stainless steel foil are particularly preferable.
- the double-sided adhesive acrylic heat conductive sheet of the present invention is preferably reinforced by laminating it with a substrate having higher strength from the viewpoint of handling.
- a base material in addition to various resin films such as polyester, non-woven fabric, glass cloth, glass chopped slan , Carbon fiber, metal fiber, metal foil and the like.
- Nonwoven fabrics and glass cloths are lightweight and have a reinforcing effect, and the thermal conductivity can be ensured by the presence of a double-sided adhesive acrylic thermal conductive sheet component in the base material.
- glass cloths using various raw materials such as chopped land can be used.
- Carbon fiber and metal foil can be expected to have a heat spread effect due to thermal conductivity in the in-plane direction of the substrate and a shielding effect against electromagnetic waves.
- the metal fibers and carbon fibers used in this case are not particularly limited, and those using various raw materials as appropriate can be used.
- Various metals such as Al, Cu, and Sn can also be used as the metal foil. Similar effects can also be expected by coating the surface of the nonwoven fabric or glass cloth with a material having conductivity or high thermal conductivity such as metal or carbon.
- a metal foil it is possible to reduce the rigidity of the double-sided adhesive acrylic heat conductive sheet laminated with the base material by using a metal foil with slits.
- double-sided adhesive acrylic thermal conductive sheets can be laminated on one side or both sides of the substrate. It may be in the form of multiple layers on one or both sides of the adhesive sheet! /. Further, in order to improve the wettability between the double-sided adhesive acrylic thermal conductive sheet and the substrate, the surface of the substrate may be treated with various coupling agents as required.
- a metal foil is a sheet with little adhesive strength like a polyester film, or an adhesive. It is also possible to cope by combining sheets with different force values by lamination. In this case, since the heat conductive double-sided adhesive tape of the present invention has good adhesive properties, it can be handled without problems such as peeling between eyebrows.
- each constituent raw material is not particularly limited, but in the case of a small amount, it can be mixed manually. Common mixers such as mixing rolls are used
- various media such as water, toluene, and alcohol can be added as appropriate to obtain a mixture suitable for each molding method.
- the double-sided adhesive acrylic thermal conductive sheet of the present invention various conventionally known methods are available. Can be used. That is, the above-described raw material mixture containing (a) monomer, (b) monomer, (c): polyol, (d): inorganic powder, and more preferably (e) flame retardant is described above as necessary.
- a slurry is prepared with or without an appropriate medium, and the slurry is coated with an appropriate sheet material by a coater method, a doctor blade method, or the like, or the above raw material mixture is extruded. It can be produced by molding into a sheet by injection molding, press molding, etc.
- reinforcing the double-sided adhesive acrylic heat conductive sheet of the present invention since the sheet of the present invention has double-sided adhesiveness, the sheet and the reinforcing substrate are bonded to each other by a normal laminating method, press
- These reinforcing base materials may be used directly as a base material used in a force coater method or the like which can be laminated using a known laminating method such as a method.
- the double-sided adhesive acrylic heat conductive sheet of the present invention is affixed to a printed circuit board, a heat sink or a heat pipe, or the double-sided adhesive acrylic heat conductive sheet of the present invention is affixed to a heat sink. It is possible to obtain an electronic component with improved heat dissipation by affixing to a printed circuit board, or affixing a double-sided adhesive acrylic heat conductive sheet of the present invention to a heat pipe.
- the slurry mixture was mixed.
- the slurry is prepared by a doctor blade method on a PET (polyethylene terephthalate) substrate with a thickness of 100 mm, and a similar PET film is formed on the upper surface of the coating film. And cured by irradiation with ultraviolet rays to obtain a sheet-like molded product having a thickness shown in Table 1.
- the maximum particle size of the inorganic powder was determined by measuring the particle size distribution with a Microtrac MT3200 manufactured by Nikkiso Co., Ltd., and the maximum particle size detected. When multiple inorganic powders were used, the larger value of the measurement results for each inorganic powder was taken as the maximum particle size.
- the high-temperature holding power of the obtained sheet was evaluated based on the measuring method described in JIS-Z-1541 and the holding power at 80 ° C against aluminum.
- the thermal conductivity is fixed between the TO-3 type copper heater case and the copper plate so that the sheet thickness is compressed by 10%, and then the heater case has a power difference of 15 W and the temperature difference between the heater case and the copper plate is constant.
- the temperature difference was measured and the thermal resistance was calculated from the following equation (9).
- Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 6 Example F Example 8 Example 9 Example 1 0;
- Irg500 photopolymerization initiator 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3
- Tables 1 and 2 are the same as in Example 1 except that DAW45 (maximum particle size 100, 1 m) or LS130 (maximum particle size 8 m) made by Taiheiyo Random is used as alumina. A sheet-like molded product was obtained. Further, the holding power and thermal conductivity at 80 ° C. of the obtained sheet with respect to aluminum were evaluated in the same manner as in Example 1. The results are shown in Tables 1 and 2.
- Example 1 When the double-sided adhesive acrylic thermal conductive sheet prepared in Example 1 was affixed to the back of the printed circuit board, it was affixed to an aluminum housing, the printed circuit board was operated, and the temperature of the substrate surface was measured. The surface temperature was lower than when tape (Nichiban Co., Ltd. “Nystack”) was used in place of the double-sided adhesive attall thermal conductive sheet.
- Example 1 When the double-sided adhesive acrylic heat conductive sheet prepared in Example 1 was attached to a heat pipe, it was attached to a printed circuit board, the printed circuit board was operated, and the temperature of the surface of the board was measured. Compared to the case where “Nai stack” manufactured by the company) was used instead of the double-sided adhesive acrylic thermal conductive sheet, the surface temperature was lowered.
- the tensile strength of the obtained sheet was measured according to JIS standard K7127.
- the adhesive strength with the base material was determined in accordance with JIS standard Z0237.
- Tensilon (A & D) was used for all measurements.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Polymerisation Methods In General (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020097003571A KR101353768B1 (ko) | 2006-09-29 | 2007-09-27 | 아크릴계 고열 전도 점착 시트 |
MX2009003364A MX2009003364A (es) | 2006-09-29 | 2007-09-27 | Hoja acrilica adhesiva, muy termicamente conductiva. |
JP2008536432A JP5120853B2 (ja) | 2006-09-29 | 2007-09-27 | アクリル系高熱伝導粘着シート |
US12/443,591 US20100035494A1 (en) | 2006-09-29 | 2007-09-27 | Highly thermally conductive acrylic adhesive sheet |
CN2007800347265A CN101518171B (zh) | 2006-09-29 | 2007-09-27 | 丙烯酸系高导热粘合片材 |
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JP2006267955 | 2006-09-29 | ||
JP2006-267955 | 2006-09-29 |
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WO2008038734A1 true WO2008038734A1 (fr) | 2008-04-03 |
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PCT/JP2007/068868 WO2008038734A1 (fr) | 2006-09-29 | 2007-09-27 | Feuille adhésive acrylique extrêmement conductrice de la chaleur |
Country Status (7)
Country | Link |
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US (1) | US20100035494A1 (ja) |
JP (1) | JP5120853B2 (ja) |
KR (1) | KR101353768B1 (ja) |
CN (1) | CN101518171B (ja) |
MX (1) | MX2009003364A (ja) |
TW (1) | TWI478809B (ja) |
WO (1) | WO2008038734A1 (ja) |
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JP2010093077A (ja) * | 2008-10-08 | 2010-04-22 | Zippertubing (Japan) Ltd | 粘着性熱伝導シート |
WO2011096287A1 (ja) * | 2010-02-04 | 2011-08-11 | 日東電工株式会社 | 熱伝導性両面粘着シート |
WO2011099369A1 (ja) * | 2010-02-12 | 2011-08-18 | 日東電工株式会社 | 熱伝導性粘着シートの製造方法 |
JP2012046677A (ja) * | 2010-08-30 | 2012-03-08 | Denki Kagaku Kogyo Kk | 粘着性アクリル系熱伝導シート |
JP2012092157A (ja) * | 2010-10-22 | 2012-05-17 | Denki Kagaku Kogyo Kk | 粘着性放熱シートの作製方法 |
US20130042972A1 (en) * | 2011-08-16 | 2013-02-21 | John Timmerman | Dual Cure Thermally Conductive Adhesive |
JP2013060535A (ja) * | 2011-09-14 | 2013-04-04 | Denki Kagaku Kogyo Kk | 高粘着性アクリル樹脂組成物およびその用途 |
JP2014218622A (ja) * | 2013-05-10 | 2014-11-20 | Dic株式会社 | 粘着テープ |
JP2015003984A (ja) * | 2013-06-20 | 2015-01-08 | 日東電工株式会社 | 熱伝導性粘着シート |
JP2016000813A (ja) * | 2009-12-21 | 2016-01-07 | テーザ・ソシエタス・ヨーロピア | 熱活性により接着可能な平面要素 |
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EP3736300A1 (en) | 2019-05-06 | 2020-11-11 | 3M Innovative Properties Company | Curable precursor of a thermally- conductive adhesive composition |
JP2021120440A (ja) * | 2020-01-31 | 2021-08-19 | 日東電工株式会社 | 両面粘着テープ |
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- 2007-09-27 CN CN2007800347265A patent/CN101518171B/zh not_active Expired - Fee Related
- 2007-09-27 MX MX2009003364A patent/MX2009003364A/es active IP Right Grant
- 2007-09-27 US US12/443,591 patent/US20100035494A1/en not_active Abandoned
- 2007-09-27 WO PCT/JP2007/068868 patent/WO2008038734A1/ja active Application Filing
- 2007-09-27 JP JP2008536432A patent/JP5120853B2/ja active Active
- 2007-09-27 KR KR1020097003571A patent/KR101353768B1/ko active IP Right Grant
- 2007-09-28 TW TW096136305A patent/TWI478809B/zh active
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JP2010093077A (ja) * | 2008-10-08 | 2010-04-22 | Zippertubing (Japan) Ltd | 粘着性熱伝導シート |
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WO2011099369A1 (ja) * | 2010-02-12 | 2011-08-18 | 日東電工株式会社 | 熱伝導性粘着シートの製造方法 |
JP2012046677A (ja) * | 2010-08-30 | 2012-03-08 | Denki Kagaku Kogyo Kk | 粘着性アクリル系熱伝導シート |
JP2012092157A (ja) * | 2010-10-22 | 2012-05-17 | Denki Kagaku Kogyo Kk | 粘着性放熱シートの作製方法 |
US20130042972A1 (en) * | 2011-08-16 | 2013-02-21 | John Timmerman | Dual Cure Thermally Conductive Adhesive |
JP2013060535A (ja) * | 2011-09-14 | 2013-04-04 | Denki Kagaku Kogyo Kk | 高粘着性アクリル樹脂組成物およびその用途 |
JP2014218622A (ja) * | 2013-05-10 | 2014-11-20 | Dic株式会社 | 粘着テープ |
JP2015003984A (ja) * | 2013-06-20 | 2015-01-08 | 日東電工株式会社 | 熱伝導性粘着シート |
JP2016216569A (ja) * | 2015-05-18 | 2016-12-22 | スリーエム イノベイティブ プロパティズ カンパニー | 粘着性物品、及び車両部材を補強する方法 |
KR20210035185A (ko) * | 2018-07-24 | 2021-03-31 | 헨켈 아게 운트 코. 카게아아 | 난연성 접착제 조성물 |
JP2021532233A (ja) * | 2018-07-24 | 2021-11-25 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェンHenkel AG & Co. KGaA | 難燃性接着剤組成物 |
JP7295939B2 (ja) | 2018-07-24 | 2023-06-21 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェン | 難燃性接着剤組成物 |
KR102606804B1 (ko) | 2018-07-24 | 2023-11-29 | 헨켈 아게 운트 코. 카게아아 | 난연성 접착제 조성물 |
WO2021145416A1 (ja) * | 2020-01-16 | 2021-07-22 | リンテック株式会社 | 樹脂シート |
WO2023013538A1 (ja) * | 2021-08-05 | 2023-02-09 | パナソニックIpマネジメント株式会社 | 電磁シールド及び通信ユニット |
Also Published As
Publication number | Publication date |
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JPWO2008038734A1 (ja) | 2010-01-28 |
CN101518171A (zh) | 2009-08-26 |
KR101353768B1 (ko) | 2014-01-21 |
MX2009003364A (es) | 2009-04-14 |
TWI478809B (zh) | 2015-04-01 |
JP5120853B2 (ja) | 2013-01-16 |
US20100035494A1 (en) | 2010-02-11 |
KR20090058507A (ko) | 2009-06-09 |
TW200836918A (en) | 2008-09-16 |
CN101518171B (zh) | 2011-05-11 |
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