WO2023047869A1 - 熱伝導性フィルム - Google Patents
熱伝導性フィルム Download PDFInfo
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- WO2023047869A1 WO2023047869A1 PCT/JP2022/031668 JP2022031668W WO2023047869A1 WO 2023047869 A1 WO2023047869 A1 WO 2023047869A1 JP 2022031668 W JP2022031668 W JP 2022031668W WO 2023047869 A1 WO2023047869 A1 WO 2023047869A1
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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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- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W40/00—Arrangements for thermal protection or thermal control
- H10W40/20—Arrangements for cooling
- H10W40/25—Arrangements for cooling characterised by their materials
- H10W40/251—Organics
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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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
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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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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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
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/442—Block-or graft-polymers containing polysiloxane sequences containing vinyl polymer sequences
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/80—Siloxanes having aromatic substituents, e.g. phenyl side groups
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- 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
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
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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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08K2201/001—Conductive additives
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- C08K2201/005—Additives being defined by their particle size in general
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
Definitions
- the present invention relates to a thermally conductive film suitable for cooling electronic parts.
- the low-hardness thermally conductive sheet is excellent in handling workability, it is difficult to reduce the thickness.
- contact thermal resistance increases and heat cannot be transferred efficiently.
- thermally conductive grease can be made thinner, so the distance between the electronic component and the heat sink can be reduced, and by filling in the fine irregularities on the surface, thermal resistance can be greatly reduced.
- thermally conductive grease is difficult to handle and contaminates the surroundings, and there is a problem that the oil in the grease separates (pumping out) due to the heat cycle, resulting in deterioration of thermal properties.
- thermally softenable materials have been proposed as thermally conductive members that have both the handling properties of low-hardness thermally conductive sheets and the low thermal resistance of thermally conductive grease. It is characterized by being in a solid state with good handling at room temperature and being softened or melted by the heat generated from the electronic component.
- Patent Document 1 proposes a thermally conductive material composed of an acrylic pressure-sensitive adhesive, an ⁇ -olefin thermoplastic, and a thermally conductive filler, or a thermally conductive material composed of paraffin wax and a thermally conductive filler.
- Patent Document 2 proposes a thermally conductive composition comprising a thermoplastic resin, wax, and a thermally conductive filler.
- Patent Document 3 proposes a heat transfer material comprising a polymer such as acrylic, a melting point component such as alcohol having 12 to 16 carbon atoms, petroleum wax, etc., and a thermally conductive filler.
- Patent Document 4 proposes a heat-softening heat-dissipating sheet composed of polyolefin and a heat-conductive filler. However, these are all based on organic matter, and there is concern about deterioration at high temperatures.
- silicone is known as a material with excellent heat resistance, weather resistance, and flame resistance, and many similar thermally softenable materials based on silicone have been proposed.
- Patent Document 5 proposes a composition comprising a thermoplastic silicone resin, a wax-like modified silicone resin, and a thermally conductive filler.
- Patent Document 6 proposes a thermally conductive sheet comprising a binder resin such as silicone gel, wax, and a thermally conductive filler.
- Patent Document 7 proposes a heat-softening heat-dissipating sheet comprising a polymer gel such as silicone, a compound such as modified silicone or wax that becomes liquid when heated, and a thermally conductive filler.
- the particle size and sieve fraction of the thermally conductive filler contained in the silicone resin base are specified to achieve a thin film.
- the thermal conductivity is about 5 W/m ⁇ K, and it is considered that the handleability and flexibility of the film become difficult in the high thermal conductivity range of 6 W/m ⁇ K or more.
- An object of the present invention is to provide a thermally conductive film that is softened by heat.
- thermally conductive filler A thermally conductive film is provided which contains 1,000 to 6,000 parts by mass per 100 parts by mass of component (A).
- thermally conductive film of the present invention in a high thermal conductivity region where the thermal conductivity exceeds 6 W / m ⁇ K, it is a film at room temperature and is easy to handle, and it is softened by heat and electronically conductive. It can follow minute irregularities on the surface of parts and heat sinks, reduces contact thermal resistance, and efficiently conducts heat.
- the softening point of the component (A) measured using a softening point measuring device conforms to JIS K2207:1996 and ranges from 30 to 65°C.
- the thermally conductive film of the present invention When the thermally conductive film of the present invention is formed into a film, it has excellent flexibility at room temperature, is easy to handle, maintains its shape well, and is easy to handle.
- the wax of the component (B) is preferably one or more selected from paraffin wax, ester wax, and silicone wax.
- a thermally conductive film containing such a wax has good heat resistance.
- the thermally conductive filler of component (C) is one or more selected from silver, aluminum, alumina, aluminum nitride, aluminum hydroxide, magnesia, and zinc oxide. is preferred.
- the present invention can suitably contain such a thermally conductive filler.
- the thermally conductive film of the present invention As described above, with the thermally conductive film of the present invention, even in a high thermal conductivity region in which the thermal conductivity exceeds 6 W/m ⁇ K, it is film-like at room temperature and is easy to handle. can be softened by In addition, since the thermally conductive film of the present invention is softened by heat, it conforms to minute unevenness of the heating element and the cooling member, and can be made thin, thereby exhibiting good heat radiation performance. .
- the present inventors have found that a non-flowing silicone resin having a specific siloxane unit, a wax having a melting point within a specific range, and a thermally conductive filler in a specific ratio.
- the inventors have found that a thermally conductive film can achieve both handleability and flexibility even in a high thermal conductivity region, and have completed the present invention.
- Thermally conductive filler A thermally conductive film characterized by containing 1,000 to 6,000 parts by mass per 100 parts by mass of component (A).
- the thermally conductive film of the present invention comprises a non-flowing silicone resin (A) component having a specific siloxane unit, a wax (B) component having a specific melting point, and a thermally conductive filler (C) component. It is characterized by including In addition to these essential components, optional components may also be included. Components constituting the thermally conductive film are described below.
- Component (A) of the present invention is a silicone resin having non-fluidity at 25° C. and forms the matrix of the thermally conductive film (heat radiation member) of the present invention.
- the component (A) is one of the factors causing thermal softening of the heat dissipating member, and also serves as a binder that imparts processability and workability to the filler that imparts thermal conductivity to the heat dissipating member.
- Component (A) is preferably one that thermally softens, has a low viscosity, or melts and fluidizes in a temperature range from a certain temperature to a maximum temperature reached by heat generation of the heat-generating electronic component.
- non-fluidity refers to a state without fluidity, and more specifically, whether the shape does not change when left standing, for example, even after a long time of about 8 hours. It refers to the state in which the shape can be maintained.
- the softening point of the component (A) is preferably 30 to 65°C, more preferably 45 to 60°C. If the softening point is 65° C. or lower, when molded into a film, it has excellent flexibility at room temperature and is easy to handle. Further, when the softening point is 30° C. or higher, the shape retention property at room temperature when molded into a film shape is good, and the handleability is also excellent.
- the softening point in the present invention refers to a value measured using a softening point measuring device (manufactured by Daiichi Rika Co., Ltd.) in accordance with JIS K2207:1996.
- the softening point refers to the value measured for the mixture.
- the silicone resin represented by the formula (1) (D m T ⁇ p D Vin ) is a non-flowing silicone having a specific composition of bifunctional structural units (D units) and trifunctional structural units (T units). Resin.
- D is ( CH3 ) 2SiO2/ 2
- T ⁇ is ( C6H5 ) SiO3 /2
- m is an integer of 35-55, preferably 35-45
- n is an integer of 30-60, preferably 30-50
- p is an integer of 40-70, preferably 40-60.
- the molar ratio of (m+n)/p is 0.25 to 4.0, preferably 0.8 to 3.0. Further, the molar ratio of (m+n)/m is 1.0 to 4.0, preferably 1.0 to 3.0.
- non-flowable silicone resins at 25° C. represented by formula (1) include the following.
- the silicone resin represented by the formula (2) ( ML D x T ⁇ q D Vi y ) includes a monofunctional structural unit (M unit), a bifunctional structural unit (D unit) and a trifunctional structural unit ( T units) in a specific composition.
- M is (CH 3 ) 3 SiO 1/2
- D, T ⁇ and D Vi are the same as above
- L is an integer of 10-30, preferably 10-20.
- x is an integer of 15-35, preferably 15-25
- y is an integer of 40-60, preferably 40-50
- q is an integer of 45-55, preferably 45-50.
- the molar ratio of (x+y)/q is 0.25 to 4.0, preferably 0.8 to 3.0. Further, the molar ratio of (x+y)/x is 1.0 to 4.0, preferably 1.0 to 3.0. Furthermore, the molar ratio of L/(x+y) is between 0.001 and 0.4, preferably between 0.1 and 0.4.
- non-flowable silicone resins at 25° C. represented by formula (2) include the following. M 20 D 25 T ⁇ 55 D Vi 50 M 15 D 20 T ⁇ 45 D Vi 40
- the thermally conductive film has poor flexibility and is easy to handle. gets worse
- the silicone resins represented by the above formula (1) or (2) may be used alone or in combination.
- the component (B) of the present invention is a wax having a melting point of 20-60°C. Said melting point is preferably between 20 and 40°C. If the melting point exceeds 60° C., the film formed into a film lacks flexibility at room temperature and becomes difficult to handle. If the melting point is lower than 20° C., the film formed into a film will lack shape retention at room temperature and will be difficult to handle.
- Component (B) is not particularly limited as long as it has a melting point of 20 to 60° C.
- the wax may be selected from paraffin wax, ester wax and silicone wax. It is preferable to select one or more kinds, and a mixture or combination (copolymer, etc.) of two or more kinds can also be used.
- a wax silicone wax is more preferable, and graft copolymer wax of acrylic polymer and polysiloxane is more preferable.
- paraffin waxes include paraffin wax 115, paraffin wax 120, paraffin wax 125, paraffin wax 130, and paraffin wax 135 (manufactured by Nippon Seiro Co., Ltd.), and ester waxes include carboxylic acids having 6 or more carbon atoms. and alcohol esters, esters of monocarboxylic acids with 6 or more carbon atoms and polyhydric alcohols, esters of polycarboxylic acids with 6 or more carbon atoms and monoalcohols with 6 or more carbon atoms, etc.
- the melting point refers to a value measured with a differential scanning calorimeter in accordance with JIS K7121:2012.
- the amount of component (B) is 5 to 300 parts by mass, preferably 10 to 200 parts by mass, more preferably 10 to 100 parts by mass, per 100 parts by mass of component (A). If the amount is less than 5 parts by mass, the resulting film will lack flexibility at room temperature, making productivity and handling difficult. On the other hand, if the amount exceeds 300 parts by mass, when formed into a film, it lacks shape retention at room temperature and becomes difficult to handle.
- the (C) component of the present invention is a thermally conductive filler.
- metals such as non-magnetic copper and aluminum, metal oxides such as alumina, silica, magnesia, iron oxide, beryllia, titania, and zirconia, metal nitrides such as aluminum nitride, silicon nitride, and boron nitride, and hydroxides.
- Metal hydroxides such as aluminum and magnesium hydroxide, artificial diamond, silicon carbide, and the like can be used. Among them, silver, aluminum, alumina, aluminum nitride, aluminum hydroxide, magnesia and zinc oxide are preferred.
- the average particle size of the thermally conductive filler is preferably 0.1 to 200 ⁇ m, and it may be used singly or in combination of two or more. When two or more types are used in combination, thermally conductive fillers of different types may be combined, or thermally conductive fillers of the same type but having different average particle diameters may be combined.
- the shape of the thermally conductive filler is not particularly limited, although there are various shapes such as spherical, pseudo-spherical, crushed, scaly, and fibrous.
- the particle size and sieve fraction of the thermally conductive filler may be specified to control the thickness of the thermally conductive film after crimping.
- the above average particle size is a volume-based cumulative average particle size (median diameter) measured by a laser diffraction/scattering method (Microtrac method) using Microtrac MT3300EX, a particle size analyzer manufactured by Microtrac Bell Co., Ltd. is the value of
- the thermally conductive filler is 1,000 to 6,000 parts by mass, preferably 1,000 to 4,000 parts by mass, per 100 parts by mass of component (A). More preferably 1,000 to 3,000 parts by mass. If it is less than 1,000 parts by mass, sufficient thermal conductivity cannot be exhibited. Moreover, if it exceeds 6,000 parts by mass, the filling itself becomes difficult.
- additives such as flame retardants, lubricants, heat resistance improvers, plasticizers, and surface treatment agents such as silane coupling agents are added depending on the purpose. may be added.
- the thermally conductive film of the present invention contains the above components (A) to (C), and is a thermally conductive member having both the handling properties of a low-hardness thermally conductive sheet and the low thermal resistance of thermally conductive grease. , and is in a solid state with good handleability at room temperature, and is characterized by being softened by heat generated from electronic components. Due to this feature, there is a problem in the prior art, that is, the low-hardness thermal conductive sheet has excellent handling workability, but it is difficult to reduce the thickness, and it cannot follow fine irregularities on the surface of electronic parts and heat sinks. , the contact thermal resistance increases and the problem of inefficient heat transfer is solved.
- the method for producing the thermally conductive film of the present invention is not particularly limited, and any known method may be used.
- the thermally softenable thermally conductive composition that provides the thermally conductive film of the present invention is prepared by blending and kneading the above components using a rubber kneader such as a dough mixer (kneader), gate mixer, planetary mixer, and the like. This makes it easy to manufacture.
- the heat-softening thermally conductive composition is formed into a film.
- film-like is used in the sense of including sheet-like and tape-like forms.
- the composition after kneading is molded by a method such as extrusion molding, calendar molding, roll molding, press molding, or the composition dissolved in a solvent is applied. methods and the like.
- the thickness of the thermally conductive film thus produced is preferably 20-200 ⁇ m, more preferably 20-100 ⁇ m, and particularly preferably 30-80 ⁇ m. When the thickness is within this range, it is easy to maintain good handleability and heat dissipation performance.
- the thermally conductive film of the invention can be produced as follows. Components such as (A) silicone resin, (B) wax, and (C) thermally conductive filler are mixed using a kneading device such as a planetary mixer or kneader to prepare a thermally conductive composition. An organic solvent such as toluene or xylene is added to the thermally conductive composition and the mixture is further kneaded to prepare a coating solution, which is applied onto a release film. Component (A) may be preliminarily dissolved in the above organic solvent to prepare a solution containing a predetermined non-volatile content. As for the coating method, after coating by bar coating, spin coating, or the like, the organic solvent is volatilized to obtain the desired thermally conductive film.
- a kneading device such as a planetary mixer or kneader
- An organic solvent such as toluene or xylene is added to the thermally conductive composition
- the heat conductivity of the heat conductive film is preferably 6 W/m ⁇ K or more. More preferably, it is 7 W/m ⁇ K. A thermal conductivity of 6 W/m ⁇ K or more is preferable because it can meet the demand for heat dissipation, which has been increasing in recent years.
- Thermal conductivity can be obtained as follows. Two disc-shaped standard aluminum plates (purity: 99.99%, diameter: about 12.7 mm, thickness: about 1.0 mm) were sandwiched between the thermally conductive film prepared above, and pressure and temperature were applied. After crimping, the thickness of the thermally conductive film after crimping is measured by measuring the thickness of every two standard aluminum plates and subtracting the known thickness of the standard aluminum plate. A micrometer (manufactured by Mitutoyo Co., Ltd., model number: M820-25VA) can be used for thickness measurement.
- thermal resistance of the thermally conductive film sandwiched between the above standard aluminum plates was measured using a microflash measuring instrument (manufactured by Netschgereitebau), and the thermal resistance of the aluminum plate was subtracted. Thermal resistance can be calculated. Then, the thermal conductivity of the thermally conductive film is calculated by dividing the previously measured thickness of the thermally conductive film by the thermal resistance.
- the thermally conductive film of the present invention is in the form of a film at room temperature and is easy to handle, even though it is in a high thermal conductivity region such that the thermal conductivity exceeds 6 W/m ⁇ K. , can be softened by heat, can follow minute unevenness of the heating element and cooling member, can be made thin, has low contact thermal resistance, and conducts heat efficiently, resulting in good heat dissipation performance. can be demonstrated.
- the dynamic viscosity shown below is a value measured by a Canon Fenske viscometer at 25 ° C. measured by the method described in JIS Z8803: 2011, and the non-volatile content is a 6 cm ⁇ aluminum petri dish with 10 g of the sample. It is a value calculated by the following formula from the mass before and after being precisely weighed and heated at 150° C. for 3 hours.
- Non-volatile content (%) [1- ⁇ (weighed value before heating (g)-weighed value after heating (g)) / weighed value before heating (g) ⁇ ]/100
- the average particle diameters shown below are volume-based cumulative average particle diameters (median diameter).
- the melting points shown below are values measured with a differential scanning calorimeter in accordance with JIS K7121:2012.
- Example 1-8 Comparative Example 1-4
- Thermally conductive compositions were prepared as follows to obtain thermally conductive films of Examples 1-8 and Comparative Examples 1-4. The following evaluation was performed about each obtained heat conductive film. Table 1 shows the results.
- a fluorine release film was thermally pressed onto the heat conductive film using a laminator under conditions of 80° C./0.3 MPa/1 m/min. After subtracting the fluorine release film, the thermally conductive film was molded so that the thickness of the film was 250 ⁇ m.
- the viscosity after dilution is a value at 25° C. measured with a rotational viscometer according to the method described in JIS K7117-1:1999.
- the thermal resistance of the thermally conductive film is obtained by measuring the thermal resistance of the standard aluminum plate sandwiched between the above standard aluminum plates with a microflash measuring instrument (manufactured by Netschgereitebau) and subtracting the thermal resistance of the aluminum plate. was calculated. Then, the thermal conductivity of the thermally conductive film was calculated by dividing the previously measured thermally conductive film thickness by the thermal resistance.
- the obtained thermal conductive film was cut into a shape of 20 ⁇ 50 mm, one side of the fluorine release film was peeled off, and a 2 kgf rubber roller was pressed against an aluminum plate twice at a speed of 500 mm / s. It was evaluated whether it could stick to the plate and peel off the remaining fluorine release film on the opposite side.
- the amount of component (A) in the table above is the amount of pure polymer in each polymer solution.
- the thermal conductivity of the film could not be measured.
- Comparative Example 4 film molding was not possible, and thermal conductivity and handleability were not evaluated.
- the thermally conductive film of the present invention can have a thermal conductivity exceeding 6 W/m K, and in such a high thermal conductivity region, At room temperature, it is in the form of a film and is easy to handle, and is softened by heat.
- thermal conductivity exceeding 7 W/m K is achieved even when the amount of the thermally conductive filler (C) is as small as 1,100 to 1,300 parts by mass with respect to 100 parts by mass of the component (A).
- Examples 4 and 5 and high thermal conductivity exceeding 10 W / m K can be achieved while maintaining good handleability even with a high filling of nearly 6,000 parts by mass ( Example 7).
- the thermally conductive film of the present invention contains a silicone resin that is non-flowing at 25° C. and a wax having a melting point of 20° C. to 60° C. as a polymer component, and is filled with a thermally conductive filler. Despite having a thermal conductivity of 6 W/m ⁇ K or more, it is easy to handle.
- the present invention is not limited to the above embodiments.
- the above-described embodiment is an example, and any device having substantially the same configuration as the technical idea described in the claims of the present invention and exhibiting the same effect is the present invention. included in the technical scope of
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Abstract
Description
しかし、これらはいずれも有機物をベースとしたもので、高温での劣化が懸念される。
しかし、これらの実施例にある熱伝導性充填材の添加量では本願が規定するような高い熱伝導率を達成することは難しい。
本発明は、上記問題を解決するためになされたものであり、熱伝導率が6W/m・Kを超えるような高熱伝導領域であっても、常温ではフィルム状で取り扱い性がよい上に、熱によって軟化する熱伝導性フィルムを提供することを目的とする。
DmTφ pDVi n (1)
(式中、Dは(CH3)2SiO2/2、Tφは(C6H5)SiO3/2、DViは(CH3)(CH2=CH)SiO2/2で示されるシロキサン単位であり、mは35~55の整数、nは30~60の整数、pは40~70の整数であって、かつ、(m+n)/m=1.0~4.0、(m+n)/p=0.25~4.0である。)
MLDxTφ qDVi y (2)
(式中、Mは(CH3)3SiO1/2であり、D、Tφ、DViは前記と同じであり、Lは10~30の整数、xは15~35の整数、yは40~60の整数、qは45~55の整数であって、かつ、L/(x+y)=0.001~0.4、(x+y)/x=1.0~4.0、(x+y)/q=0.25~4.0である。)
から選ばれる1種以上の25℃で非流動性を有するシリコーン樹脂:100質量部
(B)JIS K7121:2012に準拠して示差走査熱量測定装置で測定した融点が20~60℃であるワックス:5~300質量部
(C)熱伝導性充填材:(A)成分100質量部に対して1,000~6,000質量部
を含むものであることを特徴とする熱伝導性フィルムを提供する。
また、本発明の熱伝導性フィルムは、熱によって軟化するため発熱素子および冷却部材の微細な凹凸に追従し、かつ、厚さを薄くすることができ、良好な放熱性能を発揮することができる。
DmTφ pDVi n (1)
(式中、Dは(CH3)2SiO2/2、Tφは(C6H5)SiO3/2、DViは(CH3)(CH2=CH)SiO2/2で示されるシロキサン単位であり、mは35~55の整数、nは30~60の整数、pは40~70の整数であって、かつ、(m+n)/m=1.0~4.0、(m+n)/p=0.25~4.0である。)
MLDxTφ qDVi y (2)
(式中、Mは(CH3)3SiO1/2であり、D、Tφ、DViは前記と同じであり、Lは10~30の整数、xは15~35の整数、yは40~60の整数、qは45~55の整数であって、かつ、L/(x+y)=0.001~0.4、(x+y)/x=1.0~4.0、(x+y)/q=0.25~4.0である。)
から選ばれる1種以上の25℃で非流動性を有するシリコーン樹脂:100質量部
(B)JIS K7121:2012に準拠して示差走査熱量測定装置で測定した融点が20~60℃であるワックス:5~300質量部
(C)熱伝導性充填材:(A)成分100質量部に対して1,000~6,000質量部
を含むものであることを特徴とする熱伝導性フィルムである。
本発明の(A)成分は、25℃で非流動性を有するシリコーン樹脂であり、本発明の熱伝導性フィルム(放熱部材)のマトリックスを形成する。(A)成分は、放熱部材が熱軟化を起こす因子の一つであり、放熱部材に熱伝導性を付与する充填材に加工性や作業性をあたえるバインダとしての役割も果たす。(A)成分としては、一定温度以上、発熱性電子部品の発熱による最高到達温度以下の温度範囲において、熱軟化、低粘度化または融解して流動化するものであることが好ましい。
DmTφ pDVi n (1)
(式中、Dは(CH3)2SiO2/2、Tφは(C6H5)SiO3/2、DViは(CH3)(CH2=CH)SiO2/2で示されるシロキサン単位であり、mは35~55の整数、nは30~60の整数、pは40~70の整数であって、かつ、(m+n)/m=1.0~4.0、(m+n)/p=0.25~4.0である。)
MLDxTφ qDVi y (2)
(式中、Mは(CH3)3SiO1/2であり、D、Tφ、DViは前記と同じであり、Lは10~30の整数、xは15~35の整数、yは40~60の整数、qは45~55の整数であって、かつ、L/(x+y)=0.001~0.4、(x+y)/x=1.0~4.0、(x+y)/q=0.25~4.0である。)
から選ばれる1種以上の25℃で非流動性を有するシリコーン樹脂である。
D45Tφ 55DVi 55
D40Tφ 40DVi 40
M20D25Tφ 55DVi 50
M15D20Tφ 45DVi 40
本発明の(B)成分は、融点が20~60℃であるワックスである。前記融点は、好ましくは20~40℃である。融点が60℃を超えると、フィルム状に成型した時に常温における柔軟性に欠け、取り扱いが困難になる。また、融点が20℃未満であると、フィルム状に成型した時に常温における形状維持性に欠け、取り扱いが困難になる。
本発明の(C)成分は、熱伝導性充填材である。具体的には、非磁性の銅やアルミニウム等の金属、アルミナ、シリカ、マグネシア、ベンガラ、ベリリア、チタニア、ジルコニア等の金属酸化物、窒化アルミニウム、窒化ケイ素、窒化硼素等の金属窒化物、水酸化アルミニウム、水酸化マグネシウム等の金属水酸化物、人工ダイヤモンドあるいは炭化珪素等が挙げられる。中でも、銀、アルミニウム、アルミナ、窒化アルミニウム、水酸化アルミニウム、マグネシア、酸化亜鉛が好ましい。また、前記熱伝導性充填材の平均粒径は0.1~200μmが好ましく、1種単独でも、2種以上を複合して用いても良い。2種以上を複合して用いる場合、異種の熱伝導性充填材を複合してもよく、同種で平均粒径の異なる熱伝導性充填材を複合してもよい。
(A)、(B)、(C)の必須成分の他に、難燃付与剤、潤滑剤、耐熱向上剤、可塑剤、シランカップリング剤等の表面処理剤などの添加剤を目的に応じて添加してもよい。
本発明の熱伝導性フィルムは、上記(A)~(C)成分を含み、低硬度熱伝導性シートの取扱い性と、熱伝導性グリースの低熱抵抗性の両方の特性を有する熱伝導性部材であり、室温では取扱い性のよい固体状であり、電子部品から発生する熱により軟化するという特徴を有する。
そしてこの特徴により、従来技術の問題、即ち、低硬度熱伝導性シートにおける、取扱い作業性には優れるが、厚さを薄くすることが難しく、電子部品やヒートシンク表面の微細な凹凸に追従できないので、接触熱抵抗が大きくなり、効率よく熱を伝えられないという問題を解消するものである。
本発明の熱伝導性フィルムの製造方法は特に限定されず、公知の方法によればよい。例えば、本発明の熱伝導性フィルムを与える熱軟化性熱伝導性組成物は、上記の各成分をドウミキサー(ニーダー)、ゲートミキサー、プラネタリーミキサーなどのゴム練機を用いて配合および混練することによって、容易に製造できる。
次いで上記熱軟化性熱伝導性組成物をフィルム状に成形する。ここで、フィルム状とは、シート状、テープ状を包含する意味で用いられる。フィルム状に成形する方法としては、例えば、上記混練り後の組成物を押し出し成型、カレンダー成型、ロール成型、プレス成型等の方法で成形する方法、溶剤に溶解させた該組成物を塗工する方法等が挙げられる。
(A)シリコーン樹脂や(B)ワックス、(C)熱伝導性充填材などの成分をプラネタリーミキサーまたはニーダーのような混錬装置を用い、熱伝導性組成物を調製する。熱伝導性組成物にトルエンまたはキシレンなどの有機溶剤を添加しさらに混錬し塗工液を調製し、離型フィルム上に塗工する。(A)成分は上記有機溶剤に予め溶解して所定の不揮発分を含む溶液としてもよい。塗工方法はバーコート、スピンコートなどで塗工した後に、有機溶剤を揮発させることで、目的の熱伝導性フィルムを得る。
前記熱伝導性フィルムの熱伝導率は6W/m・K以上が好ましい。より好ましくは7W/m・Kである。6W/m・K以上の熱伝導率であれば、近年増加傾向にある放熱性の要求に対応することができるので好ましい。
二枚の円板状の標準アルミニウムプレート(純度:99.99%、直径:約12.7mm、厚み:約1.0mm)に上で作製した熱伝導性フィルムを挟み、圧力と温度を掛けて圧着し、次に、二枚の標準アルミニウムプレートごと厚みを測定し、予め分かっている標準アルミニウムプレートの厚みを差し引くことによって、圧着後の熱伝導性フィルムの厚みを測定する。なお、厚さ測定には、マイクロメーター(株式会社ミツトヨ製、型式番号:M820-25VA)を用いることができる。また、上記の標準アルミプレートに挟まれた状態での熱抵抗をマイクロフラッシュ測定機(ネッチゲレイテバウ社製)を用いて測定し、アルミプレート分の熱抵抗を差し引くことで熱伝導性フィルムの熱抵抗を算出することがきる。そして事前に測定した熱伝導性フィルム厚みを熱抵抗で割ることで熱伝導性フィルムの熱伝導率を算出する。
不揮発分(%)=[1-{(加熱前の秤量値(g)-加熱後の秤量値(g))/加熱前の秤量値(g)}]/100
(A-1)
DmTφ pDVi n (1)
m=45、n=55、p=55
軟化点;50℃
のトルエン溶液(不揮発分85%:動粘度500mm2/s)
(A-2)
MLDxTφ qDVi y (2)
L=20、x=25、y=50、q=55
軟化点;60℃
のトルエン溶液(不揮発分85%:動粘度700mm2/s)
(A-3)
M単位とQ単位のみからなるシリコーンレジン(M/Qモル比は1.15)のトルエン溶液(不揮発分70%:動粘度30mm2/s)
軟化点;120℃以上
(B-1)
KP-561P(ステアリル変性アクリレートシリコーン、信越化学工業株式会社製)
融点;30℃
(B-2)
パラフィンワックス115(日本精蝋株式会社製)
融点;48℃
(B-3)
パラフィンワックス155(日本精蝋株式会社製)
融点;70℃
(C-1)平均粒径10μm 球状アルミニウム粉
(C-2)平均粒径1μm 球状アルミニウム粉
(C-3)平均粒径0.5μm 酸化亜鉛粉
(C-4)平均粒径45μm 球状アルミナ粉
(C-5)平均粒径10μm 球状アルミナ粉
(C-6)平均粒径1μm 破砕状アルミナ粉
(D)KBM-3103(3,3,3-トリフルオロプロピルトリメトキシシラン、信越化学工業株式会社製)
(E)KF-54(メチルフェニルシリコーンオイル、信越化学工業株式会社製)
以下のようにして熱伝導性組成物を調製し、実施例1-8、比較例1-4の熱伝導性フィルムを得た。得られた熱伝導性フィルムそれぞれについて下記評価を行った。結果を表1に示す。
上記成分を表1に記載された割合でプラネタリーミキサーに仕込み、攪拌し均一化させ、熱伝導性組成物を得た。そこに希釈後の粘度が1,000~5,000Pa・sの間になるように適量トルエンを添加し、さらに攪拌し均一化させ、塗工液を得た。
上記塗工液をフッ素離型フィルム上にコンマコーターで塗工し、80℃/15分続いて100℃/10分で含まれている溶剤を揮発させて、熱伝導性フィルムを得た。さらに熱伝導性フィルム上にフッ素離型フィルムをラミネーター装置を用いて80℃/0.3MPa/1m/minの条件で熱圧着させた。
フッ素離型フィルムを差し引いて、フィルムの厚さが250μmとなるように熱伝導性フィルムを成型した。
なお、上記希釈後の粘度(絶対粘度)は、JIS K7117-1:1999に記載の方法に準拠して回転粘度計により測定した25℃における値である。
(熱伝導率)
二枚の円板状の標準アルミニウムプレート(純度:99.99%、直径:約12.7mm、厚さ:約1.0mm)に上で作製した熱伝導性フィルムを挟み、圧力と温度を掛けて圧着し、次に、二枚の標準アルミニウムプレートごと厚さを測定し、予め分かっている標準アルミニウムプレートの厚さを差し引くことによって、圧着後の熱伝導性フィルムの厚さを測定した。なお、厚さ測定には、マイクロメーター(株式会社ミツトヨ製、型式番号:M820-25VA)を用いた。また、上記の標準アルミプレートに挟まれた状態での熱抵抗をマイクロフラッシュ測定機(ネッチゲレイテバウ社製)で測定し、アルミプレート分の熱抵抗を差し引くことで熱伝導性フィルムの熱抵抗を算出した。そして事前に測定した熱伝導性フィルム厚さを熱抵抗で割ることで熱伝導性フィルムの熱伝導率を算出した。
得られた熱伝導性フィルムを20×50mmの形状に切り出し、片面のフッ素離型フィルム剥がし、アルミプレートに2kgfゴムローラーを500mm/sの速度で2回押し当てた後に、熱伝導性フィルムがアルミプレートに密着し且つ、残った反対面のフッ素離型フィルムを剥がすことができるかどうか評価した。
比較例1-3は、フィルムの熱伝導率測定ができなかった。
比較例4は、フィルム成型ができず、熱伝導率と取り扱い性の評価をしていない。
Claims (4)
- (A)下記式(1)または(2)
DmTφ pDVi n (1)
(式中、Dは(CH3)2SiO2/2、Tφは(C6H5)SiO3/2、DViは(CH3)(CH2=CH)SiO2/2で示されるシロキサン単位であり、mは35~55の整数、nは30~60の整数、pは40~70の整数であって、かつ、(m+n)/m=1.0~4.0、(m+n)/p=0.25~4.0である。)
MLDxTφ qDVi y (2)
(式中、Mは(CH3)3SiO1/2であり、D、Tφ、DViは前記と同じであり、Lは10~30の整数、xは15~35の整数、yは40~60の整数、qは45~55の整数であって、かつ、L/(x+y)=0.001~0.4、(x+y)/x=1.0~4.0、(x+y)/q=0.25~4.0である。)
から選ばれる1種以上の25℃で非流動性を有するシリコーン樹脂:100質量部
(B)JIS K7121:2012に準拠して示差走査熱量測定装置で測定した融点が20~60℃であるワックス:5~300質量部
(C)熱伝導性充填材:(A)成分100質量部に対して1,000~6,000質量部
を含むものであることを特徴とする熱伝導性フィルム。 - 前記(A)成分のJIS K2207:1996に準拠し、軟化点測定装置を用いて測定した軟化点が、30~65℃であることを特徴とする請求項1に記載の熱伝導性フィルム。
- 前記(B)成分のワックスが、パラフィンワックス、エステルワックス、シリコーンワックスから選ばれる1種以上であることを特徴とする請求項1または請求項2に記載の熱伝導性フィルム。
- 前記(C)成分の熱伝導性充填材が、銀、アルミニウム、アルミナ、窒化アルミニウム、水酸化アルミニウム、マグネシア、酸化亜鉛から選ばれる1種以上であることを特徴とする請求項1から請求項3のいずれか1項に記載の熱伝導性フィルム。
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| CN202280064430.2A CN118020151A (zh) | 2021-09-27 | 2022-08-23 | 导热性膜 |
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| EP (1) | EP4411807A4 (ja) |
| JP (1) | JP7511537B2 (ja) |
| KR (1) | KR20240063915A (ja) |
| CN (1) | CN118020151A (ja) |
| WO (1) | WO2023047869A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024225395A1 (ja) * | 2023-04-28 | 2024-10-31 | 積水化学工業株式会社 | 熱伝導性部材、熱伝導性組成物、構造体、及び構造体のリワーク方法 |
| WO2025194880A1 (zh) * | 2024-03-19 | 2025-09-25 | 上海阿莱德实业股份有限公司 | 一种高导热相变片及其制备方法 |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000509209A (ja) | 1996-04-29 | 2000-07-18 | パーカー―ハニフイン・コーポレーシヨン | 電子部品用の適合性熱境界面材料 |
| JP2000327917A (ja) | 1999-05-24 | 2000-11-28 | Fuji Kobunshi Kogyo Kk | 熱伝導性・電気絶縁性シリコーン組成物 |
| JP2000336279A (ja) | 1999-05-25 | 2000-12-05 | Fuji Kobunshi Kogyo Kk | 熱伝導性組成物 |
| JP2001089756A (ja) | 1999-07-08 | 2001-04-03 | Saint Gobain Performance Plastics Corp | 相変化熱仲介材料 |
| JP2001291807A (ja) | 2000-04-10 | 2001-10-19 | Three M Innovative Properties Co | 熱伝導性シート |
| JP2002121332A (ja) | 2000-10-12 | 2002-04-23 | Shin Etsu Chem Co Ltd | 熱軟化性放熱シート |
| JP2002234952A (ja) | 2001-02-08 | 2002-08-23 | Fuji Kobunshi Kogyo Kk | 熱軟化放熱シート及びこれを用いた放熱シート |
| JP2004075760A (ja) * | 2002-08-13 | 2004-03-11 | Denki Kagaku Kogyo Kk | 熱伝導性樹脂組成物及びフェーズチェンジ型放熱部材 |
| JP2007059877A (ja) | 2005-07-25 | 2007-03-08 | Shin Etsu Chem Co Ltd | 放熱部材 |
| JP2010018646A (ja) * | 2008-07-08 | 2010-01-28 | Shin-Etsu Chemical Co Ltd | 熱伝導性シリコーン組成物 |
| JP2013086433A (ja) * | 2011-10-20 | 2013-05-13 | Shin-Etsu Chemical Co Ltd | 熱伝導性シリコーン複合シート |
| JP2017061613A (ja) * | 2015-09-25 | 2017-03-30 | 信越化学工業株式会社 | 熱軟化性熱伝導性シリコーングリース組成物、熱伝導性被膜の形成方法、放熱構造及びパワーモジュール装置 |
| JP2020203457A (ja) * | 2019-06-19 | 2020-12-24 | 信越化学工業株式会社 | 熱伝導性複合シリコーンゴムシート |
-
2021
- 2021-09-27 JP JP2021157215A patent/JP7511537B2/ja active Active
-
2022
- 2022-08-23 KR KR1020247009801A patent/KR20240063915A/ko active Pending
- 2022-08-23 WO PCT/JP2022/031668 patent/WO2023047869A1/ja not_active Ceased
- 2022-08-23 US US18/695,270 patent/US20240392160A1/en active Pending
- 2022-08-23 CN CN202280064430.2A patent/CN118020151A/zh active Pending
- 2022-08-23 EP EP22872625.3A patent/EP4411807A4/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000509209A (ja) | 1996-04-29 | 2000-07-18 | パーカー―ハニフイン・コーポレーシヨン | 電子部品用の適合性熱境界面材料 |
| JP2000327917A (ja) | 1999-05-24 | 2000-11-28 | Fuji Kobunshi Kogyo Kk | 熱伝導性・電気絶縁性シリコーン組成物 |
| JP2000336279A (ja) | 1999-05-25 | 2000-12-05 | Fuji Kobunshi Kogyo Kk | 熱伝導性組成物 |
| JP2001089756A (ja) | 1999-07-08 | 2001-04-03 | Saint Gobain Performance Plastics Corp | 相変化熱仲介材料 |
| JP2001291807A (ja) | 2000-04-10 | 2001-10-19 | Three M Innovative Properties Co | 熱伝導性シート |
| JP2002121332A (ja) | 2000-10-12 | 2002-04-23 | Shin Etsu Chem Co Ltd | 熱軟化性放熱シート |
| JP2002234952A (ja) | 2001-02-08 | 2002-08-23 | Fuji Kobunshi Kogyo Kk | 熱軟化放熱シート及びこれを用いた放熱シート |
| JP2004075760A (ja) * | 2002-08-13 | 2004-03-11 | Denki Kagaku Kogyo Kk | 熱伝導性樹脂組成物及びフェーズチェンジ型放熱部材 |
| JP2007059877A (ja) | 2005-07-25 | 2007-03-08 | Shin Etsu Chem Co Ltd | 放熱部材 |
| JP2010018646A (ja) * | 2008-07-08 | 2010-01-28 | Shin-Etsu Chemical Co Ltd | 熱伝導性シリコーン組成物 |
| JP2013086433A (ja) * | 2011-10-20 | 2013-05-13 | Shin-Etsu Chemical Co Ltd | 熱伝導性シリコーン複合シート |
| JP2017061613A (ja) * | 2015-09-25 | 2017-03-30 | 信越化学工業株式会社 | 熱軟化性熱伝導性シリコーングリース組成物、熱伝導性被膜の形成方法、放熱構造及びパワーモジュール装置 |
| JP2020203457A (ja) * | 2019-06-19 | 2020-12-24 | 信越化学工業株式会社 | 熱伝導性複合シリコーンゴムシート |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4411807A4 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024225395A1 (ja) * | 2023-04-28 | 2024-10-31 | 積水化学工業株式会社 | 熱伝導性部材、熱伝導性組成物、構造体、及び構造体のリワーク方法 |
| JPWO2024225395A1 (ja) * | 2023-04-28 | 2024-10-31 | ||
| JP7727274B2 (ja) | 2023-04-28 | 2025-08-21 | 積水化学工業株式会社 | 熱伝導性部材、熱伝導性組成物、構造体、及び構造体のリワーク方法 |
| WO2025194880A1 (zh) * | 2024-03-19 | 2025-09-25 | 上海阿莱德实业股份有限公司 | 一种高导热相变片及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7511537B2 (ja) | 2024-07-05 |
| EP4411807A4 (en) | 2025-10-29 |
| CN118020151A (zh) | 2024-05-10 |
| KR20240063915A (ko) | 2024-05-10 |
| US20240392160A1 (en) | 2024-11-28 |
| JP2023047991A (ja) | 2023-04-06 |
| TW202313807A (zh) | 2023-04-01 |
| EP4411807A1 (en) | 2024-08-07 |
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