WO2016152161A1 - 接着剤組成物、積層体、蓄電デバイス用包装材、蓄電デバイス用容器および蓄電デバイス - Google Patents

接着剤組成物、積層体、蓄電デバイス用包装材、蓄電デバイス用容器および蓄電デバイス Download PDF

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WO2016152161A1
WO2016152161A1 PCT/JP2016/001692 JP2016001692W WO2016152161A1 WO 2016152161 A1 WO2016152161 A1 WO 2016152161A1 JP 2016001692 W JP2016001692 W JP 2016001692W WO 2016152161 A1 WO2016152161 A1 WO 2016152161A1
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storage device
adhesive
layer
adhesive composition
acid
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PCT/JP2016/001692
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English (en)
French (fr)
Japanese (ja)
Inventor
睦 中里
Original Assignee
東洋インキＳｃホールディングス株式会社
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Priority to CN201680017172.7A priority Critical patent/CN107429133B/zh
Priority to KR1020177029945A priority patent/KR102005491B1/ko
Publication of WO2016152161A1 publication Critical patent/WO2016152161A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/26—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers modified by chemical after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
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    • C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
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    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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    • C08F255/08—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having four or more carbon atoms
    • C08F255/10—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having four or more carbon atoms on to butene polymers
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    • 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
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
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    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/14—Polycondensates modified by chemical after-treatment
    • C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
    • C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
    • C08G59/1455—Monocarboxylic acids, anhydrides, halides, or low-molecular-weight esters thereof
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    • C08G59/1472—Fatty acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
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    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
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    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
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    • H01M50/121—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
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Definitions

  • the present invention relates to an adhesive composition. Moreover, this invention relates to the laminated body which laminated
  • a secondary battery is a typical power storage device. Due to the rapid growth of electronic devices such as mobile phones and portable personal computers, the demand for secondary batteries such as lightweight and small lithium-ion batteries has increased. Conventionally, metal cans have been used as outer bodies of secondary batteries, but packaging materials in which plastic films, metal foils, and the like are laminated are becoming mainstream from the viewpoints of weight reduction and productivity. As the simplest packaging material, a laminate composed of a resin film layer (11), a metal foil layer (12), an adhesive layer (13) and a heat seal layer (14) in order from the outer layer side as shown in FIG. It is done. As shown in FIG.
  • the container for an electricity storage device is formed by molding the packaging material so that the resin film layer (11) forms a convex surface and the heat seal layer (14) forms a concave surface (deep drawing molding process, overhanging). Molding process, etc.).
  • the battery is manufactured by enclosing and sealing an electrode, electrolyte solution, etc. to the concave surface side of the container for electrical storage devices.
  • Capacitors are also one of power storage devices, and lithium ion capacitors are an area in which market growth is expected in the future.
  • Patent Document 1 an aqueous emulsion and / or an aqueous solution containing a water-soluble polymer aqueous solution as a main component is blended with a compound having an epoxy group and a compound having at least two isocyanate groups in the molecule or a polymer thereof.
  • An adhesive composition is disclosed.
  • Patent Document 2 discloses (A) a polyolefin resin having at least one functional group selected from the group consisting of an acid anhydride group, a carboxyl group, and a carboxylic acid metal salt, and (B) two epoxy groups.
  • An adhesive resin composition containing the epoxidized vegetable oil having a molecular weight of 3000 or less in a specific ratio is disclosed.
  • Patent Document 3 an acid-modified polypropylene resin containing 70% by mass or more of a propylene component and 0.1 to 10% by mass of an acid component and a crosslinking agent containing at least one of an oxazoline compound and an epoxy compound are specified.
  • a battery case having an adhesive layer contained in a proportion is disclosed.
  • Patent Document 4 contains an acid-modified polyolefin resin (A) and an epoxy resin compound (B) having two or more epoxy groups in one molecule and 10 or more hydroxyl groups in one molecule.
  • An adhesive resin composition is disclosed.
  • Patent Document 5 discloses a laminate adhesive composition containing a polyolefin resin (A) having a hydroxyl group and / or an acid group, a phosphoric acid-modified compound (B), and an epoxy resin (C) having an epoxy equivalent of 160 to 1000.
  • a product is disclosed (see claims 4 and 9). And the application to the laminated body for secondary batteries is disclosed.
  • JP-A-55-005937 Japanese Patent No. 3184725 JP 2012-216364 A JP 2013-91702 A International Publication No. 2014/050686
  • the adhesive layer for bonding the metal foil layer and the heat seal layer among the packaging materials for the electricity storage device.
  • the adhesive strength between the metal foil layer and the heat seal layer is large.
  • the adhesive layer has electrolyte solution resistance. That is, the adhesive strength between the metal foil and the heat seal layer can be maintained even if the electrolyte solution is sealed in the battery container.
  • the electrolyte solution of a lithium battery includes a lithium salt (electrolyte) such as lithium hexafluorophosphate and a solvent such as propylene carbonate, ethylene carbonate, diethyl carbonate, and dimethyl carbonate.
  • the electrolyte solution When the electrolyte solution is put into the container for the electricity storage device, the electrolyte solution passes through the heat seal layer, reaches the adhesive layer, and causes a decrease in the adhesive strength between the heat seal layer and the metal foil. Further, when moisture enters the electrolyte solution from the outside of the battery container, a lithium salt such as lithium hexafluorophosphate reacts with water to generate hydrofluoric acid. The generated hydrofluoric acid passes through the heat seal layer and the adhesive layer, reaches the metal foil, and corrodes the metal foil. This corrosion significantly reduces the adhesive strength between the heat seal layer and the metal foil.
  • a lithium salt such as lithium hexafluorophosphate reacts with water to generate hydrofluoric acid.
  • the generated hydrofluoric acid passes through the heat seal layer and the adhesive layer, reaches the metal foil, and corrodes the metal foil. This corrosion significantly reduces the adhesive strength between the heat seal layer and the metal foil.
  • the adhesive layer that bonds the heat seal layer and the metal foil layer is required to have resistance to a substance generated by an intruder from the outside of the electricity storage device acting on the electrolyte solution in addition to resistance to the electrolyte solution itself.
  • power storage devices have been required to have a large capacity and long-term durability. Therefore, more excellent electrolyte solution resistance is required particularly for in-vehicle applications.
  • Patent Document 1 describes that an adhesive composition is used to join between a lauan sawing material and a stone-grown slate plate by a cold-pressing method, and there is some adhesive force even after repeated boiling.
  • Patent Document 1 does not disclose or suggest a battery packaging material.
  • the moisture resistance of the adhesive strength as described above and the electrolyte solution resistance are completely different.
  • Patent Document 2 the adhesive strength between an adhesive resin composition layer formed by melt-extruding an adhesive resin composition on a polyester film or a polyamide film and each film has a temperature of 60 ° C. and a relative humidity of 90%. It is stated that it can be maintained to some extent even after being left in a constant temperature bath for 48 hours.
  • Patent Document 2 does not disclose or suggest a battery packaging material.
  • Patent Document 3 discloses a battery exterior material as described above. However, the electrolyte solution resistance is only about 24 hours at 85 ° C. or 100 ° C.
  • Patent Document 4 does not disclose or suggest a battery packaging material. Although the initial adhesive strength is described, there is no mention of the durability of the adhesive strength. Needless to say, no electrolyte solution resistance is suggested.
  • Patent document 5 discloses the application to the laminated body for secondary batteries as mentioned above, and mentions "electrolyte resistance".
  • electrolyte resistance is merely a level of immersion in a solvent (ethylene carbonate, propyl carbonate) not containing an electrolyte such as a lithium salt at 40 ° C. for 30 days. That is, “electrolyte resistance” in the cited document 4 is merely solvent resistance. Resistance to an electrolyte solution containing an electrolyte is completely different from mere solvent resistance.
  • the present invention has been made in view of the above background, and in the case of an aging time of about 40 ° C. for about 3 days, a laminate capable of maintaining a high level of adhesive strength even when immersed in an electrolyte solution at 85 ° C. for 2 weeks. It is an object of the present invention to provide an adhesive composition that can form a film. Moreover, this invention makes it a subject to provide the packaging material for electrical storage devices, the container for electrical storage devices, and an electrical storage device which are more excellent in electrolyte solution tolerance than before.
  • the present inventor found that the epoxy compound (B) obtained by the reaction of the unsaturated fatty acid polymer (B1) and the compound (B2) having two or more epoxy groups is excellent in compatibility with the polyolefin and has a curing reaction.
  • the present invention has been completed. That is, the present invention is an adhesive composition for laminating a metal foil layer and a heat seal layer via an adhesive layer, and comprises a polyolefin resin (A) having a carboxyl group or an acid anhydride group, The present invention relates to an adhesive composition comprising a saturated fatty acid polymer (B1) and an epoxy compound (B) obtained by a reaction of a compound (B2) having two or more epoxy groups.
  • the epoxy compound (B) is an epoxy compound obtained by further hydrogenating a reaction product of a polymer (B1) of an unsaturated fatty acid and a compound (B2) having two or more epoxy groups.
  • the polymer (B1) of the unsaturated fatty acid is at least one of a compound (dimer acid) obtained by dimerizing an unsaturated fatty acid having 12 to 24 carbon atoms and a compound (trimer acid) obtained by trimerization.
  • the compound (B2) having two or more epoxy groups is preferably at least one selected from a bisphenol A type epoxy compound and a bisphenol F type epoxy compound.
  • the epoxy equivalent of the epoxy compound (B) is preferably 200 to 7000.
  • the polyolefin resin (A) preferably has a mass average molecular weight of 50,000 to 500,000.
  • the polyolefin resin (A) is preferably obtained by further acid-modifying a copolymer obtained from 1-butene and another olefin.
  • the content of carboxyl groups per gram of the polyolefin resin (A) is X mmol and the content of acid anhydride groups is Y mmol
  • X + 2Y is 0.05 to 0. .6 is preferred.
  • the content of the polyolefin resin (A) is P grams and the epoxy group in the epoxy compound (B) is Z mmol
  • Z / [(X + 2Y) P] is 0. 3 to 10 is preferable.
  • the present invention relates to a laminate in which a metal foil layer and a heat seal layer are laminated via an adhesive layer formed from the above adhesive composition.
  • the present invention is an electricity storage device packaging material in which a resin film layer, a metal foil layer, an adhesive layer, and a heat seal layer are essential from the outer layer, and the adhesive layer is formed from the adhesive composition.
  • the present invention relates to a packaging material for an electricity storage device.
  • the present invention also relates to a container for an electricity storage device formed from the packaging material for an electricity storage device, wherein a heat seal layer constitutes the inner surface. Furthermore, this invention relates to the electrical storage device formed using the said container for electrical storage devices.
  • the adhesive composition of the present invention in the case of aging at 40 ° C. for about 3 days, it is possible to form a laminate capable of maintaining the adhesive strength at a high level even when immersed in an electrolyte solution at 85 ° C. for 2 weeks.
  • the packaging material for an electricity storage device of the present invention includes at least a resin film layer (11), a metal foil layer (12), an adhesive layer (13), and a heat seal layer (14) that are sequentially laminated. Become.
  • the adhesive layer (13) plays a role of bonding the metal foil layer (12) and the heat seal layer (14) together.
  • the container for an electricity storage device of the present invention is formed using the packaging material for an electricity storage device of the present invention, and the form thereof is not particularly limited.
  • the heat seal layer (14) is arranged inside the tray, that is, on the concave side forming a space for accommodating the electrode, the electrolyte solution, etc., and the resin on the outer layer side outside the tray, that is, on the convex side.
  • a film layer (11) is arranged.
  • cylindrical (cylindrical, square, elliptical, etc.) modes can be exemplified.
  • These electric storage device containers are usually obtained by molding a flat storage device for an electric storage device.
  • the inside of the electricity storage device container that is, the surface in contact with the electrolyte solution or the like is a heat seal layer (14).
  • the heat seal layer (14) of the flange portion and the heat seal layer (14) constituting another packaging material for the electricity storage device or the heat seal layer (14) of the flange portion of the container for another electricity storage device are opposed to and in contact with each other. By heating, the heat seal layers (14) are fused together to enclose an electricity storage device member such as an electrolyte solution and electrodes.
  • the container for an electricity storage device of the present invention includes a bag-like container (pouch type) in addition to a tray shape.
  • the adhesive composition of this invention is used suitably for formation of an adhesive bond layer (13).
  • the adhesive composition of the present invention contains a polyolefin resin (A) having a carboxyl group or an acid anhydride group and an epoxy compound (B) modified with a polymer of an unsaturated fatty acid.
  • a polyolefin resin (A) having a carboxyl group or an acid anhydride group is simply abbreviated as a polyolefin resin (A), and is reacted with a polymer (B1) of an unsaturated fatty acid and a compound (B2) having two or more epoxy groups.
  • the resulting epoxy compound (B) may simply be abbreviated as epoxy compound (B).
  • the acid anhydride group is reacted with the epoxy group in the epoxy compound (B).
  • a strong cross-linked structure is formed, sufficient adhesive strength can be exhibited, and the adhesive strength can be maintained at a high level even when immersed in a higher temperature electrolyte solution for a long period of time.
  • the polyolefin resin (A) preferably has an amorphous part.
  • the reason is that it is excellent in the solubility with respect to the solvent used for the adhesive composition, and is excellent in storage stability in which the dissolved solution can be stably stored without precipitation.
  • the polyolefin resin (A) used in the present invention preferably has a mass average molecular weight of 50,000 to 500,000, a melting point of 60 to 110 ° C., and a melting energy ( ⁇ E) of 15 to 50 (mJ / mg). .
  • the polyolefin resin (A) has a mass average molecular weight (Mw) of 50,000 to 500,000, the storage stability of the polyolefin resin (A) constituting the adhesive composition as a solution, and a packaging material for an electricity storage device As a result, it is easy to achieve both electrolyte solution resistance, heat sealability, and coating properties. More preferably, the Mw of the polyolefin resin (A) is 100,000 to 400,000. In other words, if the Mw of the polyolefin resin (A) is less than 50,000, the entanglement of the polymer chain of the polyolefin resin (A) is insufficient, so that the film strength of the adhesive layer is lowered and the electrolyte solution resistance may be insufficient.
  • Mw mass average molecular weight
  • the polyolefin resin (A) has a melting point of 60 to 110 ° C. and a melting energy ( ⁇ E) of 15 to 50 (mJ / mg), so that the adhesive strength as an energy storage device packaging material (initially, after immersion in an electrolyte solution) And heat sealability can be satisfied in a well-balanced manner.
  • ⁇ E melting energy
  • the melting point of the polyolefin resin (A) is 60 to 90 ° C. Further, when the melting energy ( ⁇ E) of the polyolefin resin (A) is less than 15 mJ / mg, the adhesive strength and heat sealability after immersion in the electrolyte solution are lowered, and when it exceeds 50 mJ / mg, the crystallinity is high. A) Storage stability as a solution may decrease. More preferably, the melting energy ( ⁇ E) of the polyolefin resin (A) is 20 to 50 mJ / mg, more preferably 20 to 40 mJ / mg.
  • the packaging material for power storage devices is further heat-sealed. It is also required to have excellent properties.
  • the heat seal layer (14) constituting the packaging material for the electricity storage device is fused with the heat seal layer (14) by heat, and an electricity storage device member such as an electrolyte solution or an electrode in the electricity storage device container.
  • an electricity storage device member such as an electrolyte solution or an electrode in the electricity storage device container.
  • the adhesive layer (13) that has bonded the heat seal layer (14) and the metal foil layer (12) melts or deforms due to heat and pressure during heat sealing, the electrode terminal and the metal foil There is a possibility that the layer (12) is electrically connected. When conducting, it does not function as an electricity storage device. Therefore, it is required that the adhesive layer (13) is not melted or deformed by heat and pressure during heat sealing so that the insulation between the electrode terminal and the metal foil layer (12) is not impaired by heat sealing. It is done.
  • the polyolefin resin (A) whose melting point and melting energy ( ⁇ E) are within the above ranges, melting and deformation of the adhesive layer (13) during heat sealing can be effectively suppressed / prevented.
  • “storage stability” means that 10 g of resin is added to 90 g of toluene, the resin is heated and dissolved to obtain a transparent solution, and then cooled to 25 ° C. for one week at the same temperature. A thing that does not cause precipitation upon standing.
  • the polyolefin resin (A) in the present invention only needs to have a carboxyl group or an acid anhydride group.
  • the polyolefin resin (A-1) having no carboxyl group or acid anhydride group has no ethylenic group.
  • examples thereof include a modified polyolefin resin obtained by graft polymerization of a saturated carboxyl group or its acid anhydride, and a copolymer of an olefin monomer and an ethylenically unsaturated carboxylic acid or its acid anhydride.
  • the polyolefin which has a carboxyl group can also be obtained by making it react with the acid anhydride group of polyolefin which has an acid anhydride group, and water or alcohol.
  • a modified polyolefin resin obtained by graft-polymerizing an ethylenically unsaturated carboxyl group or an acid anhydride thereof to a polyolefin resin (A-1) having no carboxyl group or acid anhydride group is preferable.
  • the polyolefin resin (A) may be used alone or in combination of two or more kinds. The amount of the carboxyl group or acid anhydride group in the polyolefin resin (A) will be described later.
  • the method for graft polymerization of polyolefin is not particularly limited.
  • the polyolefin resin (A) is not particularly limited.
  • a homopolymer of olefin monomers such as ethylene, propylene, 1-butene, butadiene, isoprene, 1-hexene and 1-octene, Or a copolymer with other monomers, and a polymer mainly composed of a hydrocarbon skeleton, such as a hydride or a halide of the obtained polymer.
  • the polyolefin resin (A) is preferably a copolymer of olefin monomers.
  • the copolymer of olefin monomers is preferably a copolymer of 1-butene and other olefin monomers.
  • Other olefins are preferably ethylene and propylene, and copolymers of 1-butene and other olefin monomers are binary copolymers of ethylene and 1-butene, and binary of propylene and 1-butene.
  • Examples of the copolymer include a terpolymer of ethylene, propylene and 1-butene, and a binary copolymer of propylene and 1-butene is more preferable.
  • the melting point may be lower than 60 ° C. when propylene is less than 10 mol%, and the melting point may be higher than 110 ° C. when it is higher than 80 mol%.
  • Aromatic vinyl compounds such as styrene, ⁇ -methylstyrene and indene; Methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, hexyl (meth) acrylate, octyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, dodecyl (meth) acrylate, stearyl (meth) acrylate, Alkyl (meth) acrylate compounds such as behenyl (meth) acrylate; (Meth) acrylate compounds having an alicyclic structure such as cyclohexyl (meth) acrylate and isobornyl (meth) acrylate; (Meth) acrylate compounds having an aromatic ring such as benzyl (meth) acryl
  • the ethylenically unsaturated carboxylic acid is not particularly limited, and examples thereof include acrylic acid, methacrylic acid, maleic acid, fumaric acid, crotonic acid, and itaconic acid. These ethylenically unsaturated carboxylic acids or acid anhydrides thereof may be used alone or in combination of two or more.
  • the polymerization method of the olefin monomer is not particularly limited.
  • the polymerization can be performed by adding a metal catalyst such as a Ziegler-Natta catalyst or a metallocene catalyst.
  • a metal catalyst such as a Ziegler-Natta catalyst or a metallocene catalyst.
  • promoters such as (methyl) aluminoxane, as needed.
  • Mw of polyolefin resin (A) is calculated
  • the melting point and melting energy ( ⁇ E) can be determined by DSC measurement according to JIS K7121. Specifically, it is obtained as follows. When the diameter or each side of the polyolefin resin (A) of about 10 mg is 0.5 mm or less, it is used as it is, and if it exceeds 0.5 mm, it is cut into 0.5 mm or less and put into a container.
  • the melting point is determined by changing a provisional value of melting point predicted from the olefin composition (hereinafter referred to as provisional melting point) or measurement conditions. It is then heated at 10 ° C. per minute to a temperature about 30 ° C. above the provisional melting point and then cooled to 10 ° C. per minute to a temperature about 50 ° C.
  • polyolefin resin A
  • Sumifit CK1D (trade name, manufactured by Sumitomo Chemical Co., Ltd.), Unistor P-401, P-802, P-902 (trade name), Umex 1001, 1010, 2000 (trade name, manufactured by Sanyo Chemical Co., Ltd.), Auroren 350S, 351S, 359S, S-5247S, S-5248S, S-5297S, S-5349S, S-5350S, and the like.
  • a polyolefin resin having no carboxyl group or acid anhydride group may be used in combination with the polyolefin resin (A) having a carboxyl group or acid anhydride group, as long as the effects of the invention are not impaired. .
  • Examples of the polyolefin resin having no carboxyl group or acid anhydride group used in the present invention include Tough selenium T3712, T3722, T3522 (propylene elastomer), Sumitomo Nobrene (polypropylene), Mitsui Chemicals, manufactured by Sumitomo Chemical Co., Ltd.
  • Tafmer DF & A Tafmer H, Tafmer XM, Tafmer BL, Tafmer M ( ⁇ -olefin copolymer), Kuraray LIR-30 (isoprene polymer), LIR-200 (hydrogenated isoprene polymer), LBR -300 (butadiene polymer), Kuraray Septon 2002, 2004 (more hydrogenated styrene-isoprene-styrene copolymer), 2104, 4033, HG252 (more hydrogenated styrene-isoprene / butadiene-styrene copolymer) Coalescence), Asahi Kasei Chemical Asaprene T-432 and T-437 manufactured by Clayton Polymer Japan, Clayton D1155 manufactured by Clayton Polymer Japan (above, styrene-butadiene-styrene copolymer), Tuftec P1500, P2000 and MP10 manufactured by Asahi Kasei Chemicals
  • the epoxy compound (B) obtained by the reaction of the unsaturated fatty acid polymer (B1) used in the present invention with the compound (B2) having two or more epoxy groups will be described. Due to the strong cross-linked structure obtained by reacting the epoxy group in the epoxy compound (B) with the carboxyl group or acid anhydride group in the polyolefin resin (A), sufficient adhesive strength can be expressed, and a higher temperature electrolyte solution can be obtained. Even if it is immersed for a long time, its adhesive strength can be maintained at a high level.
  • the epoxy compound (B) used in the present invention is not limited to the following, but is a compound (B2) having a carboxyl group and two or more epoxy groups in the polymer (B1) of unsaturated fatty acid. ) Or a hydrogenated compound thereof obtained by an esterification reaction with an epoxy group.
  • the epoxy compound (B) modified with the unsaturated fatty acid polymer (B1) the compatibility with the polyolefin resin (A) is remarkably improved, and the carboxyl group or acid anhydride group in the polyolefin resin (A) is improved. Reaction is promoted, and productivity can be improved.
  • Examples of the unsaturated fatty acid polymer (B1) include unsaturated fatty acid dimers, trimers and oligomers of tetramers or more. Dimers (dimer acid), trimers (trimer acid) ) Is preferable, and a mixture of the two may be used.
  • unsaturated fatty acids include fatty acids having one unsaturated group such as oleic acid, elaidic acid, vaccenic acid, ricinolenic acid, gadoleic acid, eicosenoic acid, erucic acid, nervonic acid; Fatty acids having two unsaturated groups such as linoleic acid, icosadienoic acid, docosadienoic acid; Fatty acids having three unsaturated groups such as icosatrienoic acid, eleostearic acid, dihomo- ⁇ -linolenic acid, pinolenic acid, mead acid, linolenic acid; Examples include fatty acids having four unsaturated groups such as stearidonic acid, adachidonic acid, eicosatetraenoic acid, and adrenic acid.
  • Examples of commercially available products of these polymerized fatty acids include “Pripol 1004”, “Plipol 1006”, “Plipol 1009”, “Plipol 1013”, “Plipol 1015”, “Plipol 1017”, and “Plipol 1022” manufactured by Croda Japan. , “Prepole 1025”, “Prepole 1040”, “Empole 1008”, “Empole 1012”, “Empole 1016”, “Empole 1026”, “Empole 1028”, “Empole 1043”, “Empole 1061” manufactured by BASF Japan And “Empole 1062”. Of these, unsaturated fatty acids having 12 to 24 carbon atoms, which have good compatibility with the polyolefin resin (A) and are easily obtained industrially, are preferable.
  • the compound (B2) having two or more epoxy groups may be a compound having two or more epoxy groups in one molecule.
  • a commercial product for example, trade name “Epicoat” manufactured by Mitsubishi Chemical Corporation 828 ”,“ Epicoat 834 ”,“ Epicoat 1001 ”,“ Epicoat 1004 ”, trade names“ Epicron 840 ”,“ Epicron 850 ”,“ Epicron 1050 ”,“ Epicron 2055 ”manufactured by Dainippon Ink and Chemicals, NS Bisphenol A type epoxy compounds such as “Epototo 128” manufactured by Kagaku Co .; Product name “Epicron 830S” manufactured by Dainippon Ink & Chemicals, Inc.
  • Epicron EXA1514 Bisphenol fluorene type epoxy compounds such as “BPFG” manufactured by Osaka Gas Co., Ltd., “YL-6056”, “YL-6021”, “YX-4000”, “YX-4000H” manufactured by Mitsubishi Chemical Corporation, etc.
  • Epicron N-690 Epicron N-695
  • Epicron N-730 Epicron N-770
  • Epicron N-865 trade names “Epototo YDCN” manufactured by Nippon Steel & Sumikin Chemical Co., Ltd. -701 ”,“ Epototo YDCN-704 ”, trade names“ EPPN-201 ”,“ EOCN-1025 ”,“ EOCN-1020 ”,“ EOCN-104S ”,“ RE-306 ”manufactured by Nippon Kayaku Co., Ltd.
  • Novolac epoxy compounds Product name “Epicoat YL-903” manufactured by Mitsubishi Chemical Corporation, product names “Epicron 152” and “Epicron 165” manufactured by Dainippon Ink and Chemicals, Inc.
  • Epoxy compounds having a dicyclopentadiene skeleton such as trade names “HP-7200” and “HP-7200H” manufactured by Dainippon Ink & Chemicals, Inc .
  • Trishydroxyphenylmethane type epoxy compounds such as trade names “YL-933” manufactured by Mitsubishi Chemical Corporation and trade names “EPPN-501” and “EPPN-502” manufactured by Nippon Kayaku Co., Ltd .
  • Heterocyclic epoxy compounds such as Nissan Chemical's trade name “TEPIC” and Mitsubishi Gas Chemical's trade name “TGI”
  • Glycidylamine type epoxy compounds such as trade names “jER604” and “jER630” manufactured by Mitsubishi Chemical Corporation, “Epototo YH-434” manufactured by Nippon Steel & Sumikin Chemical Co., Ltd., and “Araldite MY720” manufactured by Asahi Kasei Corporation
  • Alicyclic epoxy compounds such as “Celoxide 2011” manufactured by Daicel Chemical Industries, “Araldite CY175
  • the epoxy equivalent of the epoxy compound (B) obtained by the reaction of the unsaturated fatty acid polymer (B1) and the compound (B2) having two or more epoxy groups used in the present invention is pot life, adhesive strength, Also, from the reason of excellent chemical resistance, it is preferably 200 to 7000. It is preferable that the epoxy equivalent is 200 or more from the viewpoint of improving the initial adhesive force due to the length of the pot life of the adhesive composition and the appropriate crosslinking density of the adhesive layer. Moreover, when the epoxy equivalent is 7000 or less, the crosslinking density of the adhesive layer can be increased, the initial adhesive force can be improved, and the chemical resistance can also be improved.
  • the epoxy equivalent is the number of grams (g / eq) of a resin containing 1 gram equivalent of an epoxy group, and was calculated by potentiometric titration based on JIS K7236.
  • the esterification reaction for producing the epoxy compound (B) obtained by the reaction of the unsaturated fatty acid polymer (B1) used in the present invention with the compound (B2) having two or more epoxy groups is known.
  • the reaction can be performed. That is, the production method is not particularly limited, and for example, it is synthesized by a reaction between a carboxyl group and an epoxy group using a catalyst.
  • the reaction can be easily carried out by contacting them in the presence of a catalyst at a temperature of 50 to 200 ° C., preferably 120 to 180 ° C. for 30 minutes to 20 hours.
  • the acid value of the reaction product is 5 mgKOH / g.
  • the end point of the reaction is preferably the time when 1 mgKOH / g or less is reached.
  • Catalysts such as halides such as zinc chloride and lithium chloride; Tertiary amines such as N, N-dimethylaniline, pyridine, triethylamine, hexamethylenediamine, diazabicycloundecene and their basic acids or odorates; Quaternary ammonium salts such as tetramethylammonium chloride and trimethyldodecylbenzylammonium chloride; Sulfonic acids such as paratoluenesulfonic acid are used.
  • the epoxy compound (B) obtained by the reaction of the unsaturated fatty acid polymer (B1) and the compound (B2) having two or more epoxy groups is also available as a commercial product.
  • “Epicoat 871”, “Epicoat 872”, “Epicoat 872-X-75” manufactured by Mitsubishi Chemical Corporation, “YD-172”, “YD-172X75” manufactured by Nippon Steel & Sumikin Chemical Co., Ltd. may be used.
  • the content of carboxyl groups per gram of polyolefin resin (A) is X mmol
  • the content of acid anhydride groups is In the case of Y mmol
  • X + 2Y is preferably 0.05 to 0.6.
  • X + 2Y is less than 0.05, there are few acidic groups that serve as crosslinking points, crosslinking is not sufficient, and sufficient adhesive strength and electrolyte solution resistance may not be obtained. If it is larger than 0.6, the crosslinking strength of the coating film is large, so that the adhesive strength may be insufficient, or the solubility in a solvent may be reduced.
  • Z / (X + 2Y) P is within a range of 0.3 to 10. More preferably, the epoxy compound (B) is included in the range of 0.5 to 7.
  • Z / (X + 2Y) P is preferably 0.3 or more so that a sufficient cross-linked structure can be formed to improve cohesion. From the viewpoint of electrolyte solution resistance, Z / (X + 2Y) P is preferably 10 or less so that no unreacted epoxy compound (B) remains.
  • the adhesive of the present invention can further contain a silane coupling agent in order to increase the adhesive strength with the metal foil.
  • a silane coupling agent include trialkoxysilanes having a vinyl group such as vinyltrimethoxysilane and vinyltriethoxysilane, 3-aminopropyltriethoxysilane, and N- (2-aminoethyl) 3-aminopropyltrimethoxysilane.
  • glycidyl group such as trialkoxysilane having an amino group such as 3-glycidoxypropyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, and 3-glycidoxypropyltriethoxysilane
  • examples include trialkoxysilane.
  • the addition amount of the silane coupling agent is preferably 0.1 to 5% by mass, more preferably 0.5 to 3% by mass based on the solid content of the adhesive.
  • the adhesive of the present invention can contain catechol or a derivative thereof in order to increase the adhesive strength with the metal foil.
  • catechol or a derivative thereof in order to increase the adhesive strength with the metal foil.
  • Specific examples include catechol, t-butylcatechol, adrenaline, noradrenaline, dopamine, nordihydroguaiaretic acid and the like.
  • the adhesive composition of the present invention can contain an organic solvent.
  • An epoxy compound (B) which can dissolve a material used in the present adhesive composition alone or as a mixed solvent, and which is obtained by reacting an unsaturated fatty acid polymer (B1) with a compound (B2) having two or more epoxy groups. ) Is inactive and is not particularly limited as long as it can be volatilized and removed by heating in the drying step during adhesive coating.
  • solvents include aromatic organic solvents such as toluene and xylene; aliphatic organic solvents such as n-hexane and n-heptane; Cycloaliphatic organic solvents such as cyclohexane and methylcyclohexane; Ketone solvents such as methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone; Ester solvents such as ethyl acetate and butyl acetate; Alcohol solvents such as ethanol, methanol, n-propanol, 2-propanol, butanol, hexanol; Ether solvents such as diisopropyl ether, butyl cellosolve, tetrahydrofuran, dioxane, butyl carbitol; Glycol ether solvents such as diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, propylene glycol monomethyl ether;
  • a combination of an aromatic organic solvent and a ketone solvent, a combination of an aromatic organic solvent and an alcohol solvent, an alicyclic organic solvent from the viewpoint of the storage stability of the solution of the polyolefin resin (A), a combination of an aromatic organic solvent and a ketone solvent, a combination of an aromatic organic solvent and an alcohol solvent, an alicyclic organic solvent, The combined use of a ketone solvent and the combined use of an alicyclic organic solvent and an alcohol solvent are preferred.
  • tackifiers that can be used in the present invention include polyterpene resins, rosin resins, aliphatic petroleum resins, alicyclic petroleum resins, copolymer petroleum resins, styrene resins, and hydrogenated petroleum resins. Used for the purpose of improving strength. These may be used alone or in any combination of two or more.
  • plasticizer used in the present invention include liquid rubber such as polyisoprene and polybutene, process oil, and the like.
  • the adhesive composition of the present invention is suitably used for laminating the metal foil layer (12) and the heat seal layer (14).
  • the metal of the metal foil layer (12) include aluminum, copper, and nickel. These metal foils may be subjected to various surface treatments. Examples of the surface treatment include physical treatment such as sand blast treatment and polishing treatment, degreasing treatment by vapor deposition, etching treatment, and surface treatment such as primer treatment for applying a coupling agent or a coating agent.
  • the treatment agent for forming the surface treatment layer preferably contains a functional group that reacts with an epoxy group, and more preferably contains at least one functional group selected from the group consisting of a carboxylic acid, a hydroxyl group and an amino group. .
  • the amino group here is a primary amine, a secondary amine, or an imino group.
  • the heat seal layer (14) is not particularly limited, but is preferably a polyolefin film, and at least selected from the group consisting of polyethylene, polypropylene, olefin copolymers, acid-modified products thereof, and ionomers.
  • An unstretched film made of one kind of thermoplastic resin is preferable.
  • the thickness of the heat seal layer is not particularly limited, but is preferably 20 to 150 ⁇ m.
  • a laminate using the adhesive composition of the present invention can be obtained, for example, as follows. On one side of the metal foil layer (12) (or heat seal layer (14)), the adhesive composition of the present invention is applied, and the solvent is stripped (dried) to form an uncured adhesive layer. After the heat seal layer (14) (or the metal foil layer (12)) is stacked on the surface of the uncured adhesive layer under pressure at 60 to 150 ° C., it is 3 to 10 days at 40 to 80 ° C.
  • the laminate can be obtained by allowing to stand to a certain degree, sufficiently curing the adhesive layer (also referred to as aging), and bonding the metal foil and the heat seal layer together.
  • a general coating machine such as a comma coater can be used for coating of the adhesive composition.
  • the thickness (amount) of the cured adhesive layer at the time of dry curing is preferably about 0.5 to 10 g / m 2 .
  • the packaging material for an electricity storage device of the present invention is the outer layer side adhesive on the other surface of the metal foil layer (12) (the surface where the adhesive layer (13) formed from the adhesive composition of the present invention is not in contact).
  • a resin film layer (11) can be provided through the layer.
  • the resin film layer (11) is previously laminated on the metal foil layer (12) using an adhesive composition (which may be the same as or different from the adhesive composition of the present invention).
  • an outer layer side adhesive bond layer is attached to a metal foil layer (12).
  • the resin film layer (11) can also be laminated.
  • the resin film layer (11) used examples include stretched films such as a polyester resin and a polyamide resin (nylon), and the resin film layer (11) uses a laminate as a packaging material for an electricity storage device and is used for an electricity storage device.
  • stretched films such as a polyester resin and a polyamide resin (nylon)
  • the resin film layer (11) uses a laminate as a packaging material for an electricity storage device and is used for an electricity storage device.
  • the container is located outside the electrolyte solution.
  • the container for an electricity storage device of the present invention is molded using the aforementioned packaging material for an electricity storage device so that the resin film layer (11) on the outer layer side forms a convex surface and the heat seal layer (14) forms a concave surface.
  • the “concave surface” as used in the present invention is a surface having a dent that can accommodate the electrolyte solution when the flat packaging material for an electricity storage device is molded into a tray shape as shown in FIG.
  • the term “convex surface” as used in the present invention refers to the self-back surface (opposite surface, back surface) of the surface having the depression.
  • An electricity storage device such as a secondary battery includes a battery body, a plurality of terminals respectively joined to a positive electrode and a negative electrode of the battery body, a battery container, and an electrolyte solution.
  • the battery container is obtained from a laminate in which a metal foil layer (12) and a heat seal layer (14) are laminated via an adhesive layer (13) formed from the adhesive composition of the present invention. The heat seal layer is in contact with the electrolyte solution.
  • the electrolyte solution starts to penetrate from the heat seal layer (14) toward the metal foil layer (12), but the adhesive layer (13) formed from the adhesive composition of the present invention has excellent resistance to the electrolyte solution. Therefore, the adhesive strength between the heat seal layer and the metal foil does not decrease, and problems such as liquid leakage do not occur.
  • X 0.1 * b / a ⁇ Quantification of acid anhydride group>
  • a weighed sample of c grams was dissolved in refluxed xylene, cooled to room temperature, and d mmol of octylamine equal to or greater than the acid anhydride group of the sample was added.
  • the copolymer composition ratio of the polyolefin was determined by 13 C measurement using NMR (JNM-LA400) manufactured by JEOL. A 20 mg sample was dissolved in 1 mL deuterated chloroform and measured. The methylene group derived from ethylene has a peak at 40-50 ppm, the methine group derived from propylene has a peak at 25-30 ppm, and the methine group derived from 1-butene has a peak at 30-35 ppm. The copolymer composition ratio was determined from the integration ratio of each peak.
  • ⁇ Synthesis Example 9> 280 g of propylene-ethylene copolymer (propylene / ethylene 82/18% by mass, mass average molecular weight 85000) was melted by heating in a four-necked flask under a nitrogen atmosphere, and then the system temperature was maintained at 180 ° C. with stirring. Then, 35.0 g of maleic anhydride as an acid component and 6.0 g of di-t-butyl peroxide as a radical generator were added over 2 hours, and then reacted for 1 hour. After completion of the reaction, the obtained reaction product was put into a large amount of acetone to precipitate a resin.
  • This resin was further washed several times with acetone to remove unreacted maleic anhydride, and then dried under reduced pressure in a vacuum dryer to obtain an acid-modified polypropylene resin (mass average molecular weight 40000).
  • a stirrer equipped with a hermetically sealed 1 liter glass container with a heater, 60.0 g of the acid-modified polypropylene resin, 60.0 g of tetrahydrofuran, 6.9 g of N, N-dimethylethanolamine (acid When 1.03.1 equivalent to the carboxyl group of the acid component in the modified polypropylene resin) and 173.1 g of distilled water were charged into a glass container and stirred at a rotation speed of 300 rpm, the resin was placed at the bottom of the container.
  • Pripol 1013 C18 unsaturated fatty acid dimer acid, acid value 196 mg KOH / g
  • jER1001 Mitsubishi Chemical Corporation, bisphenol A type epoxy compound, epoxy equivalent: 475
  • triphenylphosphine 4 parts After 160 parts of toluene and 40 parts of isopropyl alcohol were heated and dissolved in a four-necked flask under a nitrogen atmosphere, the system temperature was maintained at 100 ° C. while stirring. The reaction was carried out until the acid value became 1.0 mgKOH / g or less, followed by cooling to obtain an epoxy compound (B-1) having a solid content of 50% and an epoxy equivalent of 1236.
  • MEK methyl ethyl ketone
  • an unstretched polypropylene film (hereinafter referred to as CPP) having a thickness of 40 ⁇ m was superposed on the adhesive layer and passed between two rolls set at 80 ° C. to obtain a laminate. Thereafter, the obtained laminate was cured (aging) at 40 ° C. for 3 days or 5 days.
  • the aluminum foil / CPP laminate film thus obtained is hereinafter referred to as “Al / CPP laminate film”.
  • the initial adhesive strength, solvent resistance, and electrolyte solution resistance were evaluated according to the methods described below. The results are shown in Table 2.
  • Examples 2 to 22> ⁇ Comparative Examples 1 to 6> With the compositions shown in Tables 2 and 3, an adhesive solution and an Al / CPP laminated film were obtained in the same manner as in Example 1 and evaluated in the same manner.
  • P-401 “Unistor P-401”, manufactured by Mitsui Chemicals, acid-modified polyolefin resin, solid content acid value 55 mgKOH / g, heating residue 8%
  • P-902 “Unistor P-902”, manufactured by Mitsui Chemicals, acid-modified polyolefin resin, solid content acid value 55 mgKOH / g, heating residue 22%
  • jER871 Dimer acid-modified epoxy compound manufactured by Mitsubishi Chemical Corporation (epoxy equivalent 430 g / eq)
  • YD172 Nippon Steel & Sumikin Chemical Co., Ltd.
  • the adhesive solution was applied to a 100 ⁇ m PET film with a bar coater and dried at 100 ° C. for 1 minute to obtain an adhesive layer having a coating amount after drying of about 2 g / m 2 .
  • the compatibility was determined according to the following criteria. A: Less than 3 B: 3 or more and less than 5 C: 5 or more
  • the temperature was 85 ° C.
  • an adhesive having good adhesive strength (initially, after immersion in an organic solvent and an electrolyte solution) can be provided even if the aging period is short.
  • the adhesives of Comparative Examples 1 and 5 are epoxy compounds that do not contain a polymerized fatty acid-modified site, and have poorer compatibility with polyolefins than the epoxy compound (B) of the present invention, so that adhesive strength is manifested in aging in a short period of time.
  • the adhesion strength is significantly reduced after immersion in an organic solvent or electrolyte solution.
  • Comparative Example 2 uses an isocyanate compound having low solvent resistance as a curing agent in addition to the bisphenol A type epoxy resin, the solvent resistance is further deteriorated compared to Comparative Example 1. Since the adhesives of Comparative Examples 3 and 4 use phosphoric acid epoxy, the solvent resistance is improved as compared with Comparative Example 5, but the adhesive strength is not sufficiently exhibited by short-term aging. Even if the adhesive of Comparative Examples 4 and 6 uses an epoxy compound having an acid anhydride or a carboxyl group and a triphenylphosphine or an amino group as a catalyst for the reaction of the epoxy group, the adhesive strength is low when aging is performed for a short period of time. Not fully expressed.
  • the adhesive composition according to the present invention can be suitably used for a packaging material (laminate) for forming a container for an electricity storage device such as a lithium ion battery, an electric double layer capacitor, or a lithium ion capacitor.
  • the adhesive composition according to the present invention is a packaging material for forming a container for an electricity storage device, as well as various industrial fields that require high adhesive strength and chemical resistance, such as architecture, chemistry, medicine, and automobiles. It is used suitably for formation of the laminated body in.

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  • Polymers & Plastics (AREA)
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PCT/JP2016/001692 2015-03-25 2016-03-23 接着剤組成物、積層体、蓄電デバイス用包装材、蓄電デバイス用容器および蓄電デバイス WO2016152161A1 (ja)

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JP2016192397A (ja) * 2015-03-30 2016-11-10 大日本印刷株式会社 電池用包装材料、その製造方法及び電池
KR20180082969A (ko) * 2017-01-11 2018-07-19 토요잉크Sc홀딩스주식회사 접착제 조성물, 적층체, 축전 디바이스용 포장재, 축전 디바이스용 용기 및 축전 디바이스
CN109423240A (zh) * 2017-08-23 2019-03-05 藤森工业株式会社 粘合性树脂组合物及层叠体
CN111133075A (zh) * 2017-10-04 2020-05-08 Dic株式会社 粘接剂、层叠体、电池用构件及电池
WO2021059998A1 (ja) * 2019-09-26 2021-04-01 東洋紡フイルムソリューション株式会社 積層体
US11242474B2 (en) 2017-02-16 2022-02-08 Fujimori Kogyo Co., Ltd. Adhesive resin laminate, laminate, and method of producing same

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JP7058073B2 (ja) * 2017-02-16 2022-04-21 藤森工業株式会社 積層体及び積層体の製造方法
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KR102468900B1 (ko) * 2017-05-31 2022-11-18 린텍 가부시키가이샤 시트상 접착제, 가스 배리어성 적층체, 및 봉지체
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JP7310298B2 (ja) * 2018-06-15 2023-07-19 Dic株式会社 接着剤、積層体、電池用包装材及び電池
TW202000835A (zh) * 2018-06-15 2020-01-01 日商Ｄｉｃ股份有限公司 接著劑、層疊體、電池用包裝材、電池用容器及電池
JP7264761B2 (ja) * 2019-07-31 2023-04-25 日東電工株式会社 絶縁性粘接着剤組成物および絶縁性粘接着シート
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JP2016192397A (ja) * 2015-03-30 2016-11-10 大日本印刷株式会社 電池用包装材料、その製造方法及び電池
KR20180082969A (ko) * 2017-01-11 2018-07-19 토요잉크Sc홀딩스주식회사 접착제 조성물, 적층체, 축전 디바이스용 포장재, 축전 디바이스용 용기 및 축전 디바이스
CN108300387A (zh) * 2017-01-11 2018-07-20 东洋油墨Sc控股株式会社 接着剂组合物、层叠体、蓄电元件用包装材、容器及元件
KR102410980B1 (ko) * 2017-01-11 2022-06-22 토요잉크Sc홀딩스주식회사 접착제 조성물, 적층체, 축전 디바이스용 포장재, 축전 디바이스용 용기 및 축전 디바이스
US11242474B2 (en) 2017-02-16 2022-02-08 Fujimori Kogyo Co., Ltd. Adhesive resin laminate, laminate, and method of producing same
US11725125B2 (en) 2017-02-16 2023-08-15 Fujimori Kogyo Co., Ltd. Adhesive resin laminate, laminate, and method of producing same
CN109423240A (zh) * 2017-08-23 2019-03-05 藤森工业株式会社 粘合性树脂组合物及层叠体
CN109423240B (zh) * 2017-08-23 2020-12-29 藤森工业株式会社 粘合性树脂组合物及层叠体
CN111133075B (zh) * 2017-10-04 2021-11-23 Dic株式会社 粘接剂、层叠体、电池用构件及电池
CN111133075A (zh) * 2017-10-04 2020-05-08 Dic株式会社 粘接剂、层叠体、电池用构件及电池
JP2021054880A (ja) * 2019-09-26 2021-04-08 東洋紡フイルムソリューション株式会社 積層体
WO2021059998A1 (ja) * 2019-09-26 2021-04-01 東洋紡フイルムソリューション株式会社 積層体
JP7254670B2 (ja) 2019-09-26 2023-04-10 東洋紡株式会社 積層体

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