WO2017195456A1 - 被膜形成用組成物、表面処理金属部材の製造方法、および金属‐樹脂複合体の製造方法 - Google Patents
被膜形成用組成物、表面処理金属部材の製造方法、および金属‐樹脂複合体の製造方法 Download PDFInfo
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- WO2017195456A1 WO2017195456A1 PCT/JP2017/009992 JP2017009992W WO2017195456A1 WO 2017195456 A1 WO2017195456 A1 WO 2017195456A1 JP 2017009992 W JP2017009992 W JP 2017009992W WO 2017195456 A1 WO2017195456 A1 WO 2017195456A1
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- 0 CCC(*)(CC)C(*)(*C1)C1(*)N(*)Cc1nc(C)c(*)[n]1* Chemical compound CCC(*)(CC)C(*)(*C1)C1(*)N(*)Cc1nc(C)c(*)[n]1* 0.000 description 2
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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
- 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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- C—CHEMISTRY; METALLURGY
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using 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
- 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
- C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
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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
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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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
- 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
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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
- 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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- C—CHEMISTRY; METALLURGY
- 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
- 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
- C09D7/63—Additives non-macromolecular organic
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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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
- C09J183/00—Adhesives 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; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
- C23C22/63—Treatment of copper or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/06—Coating on the layer surface on metal layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/24—Organic non-macromolecular coating
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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
- C08K3/16—Halogen-containing compounds
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
Definitions
- the present invention relates to a film forming composition for forming a film for improving adhesion to a resin on the surface of a metal member. Furthermore, this invention relates to the manufacturing method of the surface treatment metal member using the composition for film formation, and the manufacturing method of a metal-resin composite.
- a resin material such as an etching resist, a plating resist, a solder resist, or a prepreg is bonded to the surface of a metal layer or a metal wiring.
- high adhesiveness is calculated
- a roughening agent microetching agent
- Patent Document 1 after roughening the surface of the copper circuit with an acidic aqueous solution containing copper ions, by treating with an aqueous solution containing an organic acid, a benzotriazole rust inhibitor and a silane coupling agent, It is disclosed that the adhesion between the copper circuit and the epoxy resin can be improved.
- Patent Document 2 and Patent Document 3 disclose that the adhesion between a metal and a resin can be improved by forming a film by bringing a solution containing a specific silane compound into contact with the surface of the metal.
- Patent Document 4 discloses that the adhesion between a metal and a resin can be improved by applying a rust inhibitor composed of a triazole compound, a silane coupling agent and an organic acid to the surface of the copper foil.
- the method of forming a film with a composition containing a silane coupling agent does not require the surface of the metal to be roughened, and another metal layer (for example, for improving adhesion) Since there is no need to provide a tin plating layer), there is an advantage that the joining process between the metal and the resin can be simplified.
- the conventional composition has low film formability and film adhesion to the metal surface, and the adhesion between the metal and the resin is not sufficient, or the adhesion durability against acid such as hydrochloric acid may not be sufficient. there were.
- an object of the present invention is to provide a film-forming composition for forming a film having excellent adhesion to a resin on a metal surface.
- a composition containing a predetermined aromatic compound has excellent film-forming properties on a metal surface and can greatly improve the adhesion between metal resins, leading to the present invention. It was.
- the film-forming composition of the present invention contains an aromatic compound having an amino group and an aromatic ring in one molecule; a polybasic acid having two or more carboxy groups; and a halide ion.
- the polybasic acid content is 0.05 to 10 times the aromatic compound content, and the halide ion concentration is 5 to 600 mM.
- the pH of the film forming composition (solution) is 6-9.
- a film is formed on the surface of the metal member by bringing the film-forming composition into contact with the surface of the metal member.
- the surface-treated metal member on which the film is formed is excellent in adhesiveness with the resin. Examples of the metal member include copper or a copper alloy material.
- the adhesion between the metal member and the resin can be improved by forming a film on the surface of the metal member such as copper or copper alloy using the film forming composition of the present invention.
- a metal-resin composite having high adhesion durability against acids such as hydrochloric acid can be obtained.
- the film-forming composition of the present invention is used for forming a film on a metal surface.
- the film-forming composition is a solution having a pH of 6 to 9, containing an aromatic compound having an amino group and an aromatic ring in one molecule, a polybasic acid, and a halide ion.
- each component contained in the film forming composition of the present invention will be described.
- the aromatic compound is a material that is a main component of the film, and has an amino group and an aromatic ring in one molecule.
- the aromatic ring may be composed only of carbon and hydrogen, or may be a heteroaromatic ring containing a heteroatom such as nitrogen, oxygen or sulfur.
- the aromatic ring may be monocyclic or condensed polycyclic.
- the aromatic compound preferably contains a nitrogen-containing aromatic ring.
- nitrogen-containing aromatic ring examples include pyrrole, pyrazole, imidazole, triazole, tetrazole, oxazole, oxadiazole, isoxazole, thiazole, isothiazole, furazane, pyridine, pyridazine, pyrimidine, pyrazine, triazine, tetrazine, pentazine, azepine, diazepine, Monocycles such as triazepine and condensed bicycles such as indole, isoindole, thienoindole, indazole, purine, quinoline, isoquinoline, benzotriazole; carbazole, acridine, ⁇ -carboline, acridone, perimidine, phenazine, phenanthridine, phenothiazine , Condensed tricycles such as phenoxazine and phenanthro
- nitrogen-containing aromatic rings containing two or more nitrogen atoms such as pyrazole, imidazole, triazole, tetrazole, pyridazine, pyrimidine, pyrazine, triazine, tetrazine, and pentazine are preferable, and imidazole, tetrazole, and triazine are particularly preferable.
- the amino group may be any of primary, secondary and tertiary, and may be heterocyclic.
- the amino group may be directly bonded to the aromatic ring or indirectly bonded.
- the aromatic compound may have two or more amino groups in one molecule.
- the nitrogen-containing aromatic ring corresponds to both a heterocyclic amino group and an aromatic ring. Therefore, when the above aromatic ring is a nitrogen-containing aromatic ring, it may not have an amino group separately from the aromatic ring.
- the aromatic compound preferably has a secondary amino group and / or a primary amino group, and particularly preferably has a primary amino group.
- Aromatic compounds contain a nitrogen-containing aromatic ring and can be indirectly bonded to the nitrogen-containing aromatic ring via an alkylene group, an alkyleneamino group, etc. Preferred are compounds having a primary amino group.
- the structure of the aromatic compound is not particularly limited as long as it has an aromatic ring and an amino group. Hydroxy group, carboxy group, amide group, cyano group, nitro group, azo group, diazo group, mercapto group, epoxy It may have a functional group other than an amino group such as a group, a silyl group, a silanol group, or an alkoxysilyl group. In particular, when the aromatic compound has an alkoxysilyl group or a hydroxysilyl group, the aromatic compound has an action as a silane coupling agent, so that the adhesion between the metal and the resin tends to be improved.
- the molecular weight of the aromatic compound is preferably 1500 or less, more preferably 1200 or less, and even more preferably 1000 or less.
- aromatic compound is an imidazole silane compound represented by the following general formulas (I) and (II) (for example, JP-A-2015-214743).
- R 11 to R 15 in the general formulas (I) and (II) are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an allyl group, a benzyl group, or an aryl group.
- R 21 and R 22 each independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a hydroxy group or a methoxy group, and p is an integer of 0 to 16.
- R 31 is a primary amino group (—NH 2 ), an alkoxysilyl group or a hydroxysilyl group represented by —Si (OR 41 ) k R 42 (3-k) (k is an integer of 1 to 3, R 41 and R 42 are each independently a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.
- a silane compound having a triazole ring as a nitrogen-containing aromatic ring can also be suitably used as the aromatic compound (for example, JP-A-2016-56449).
- R 21, R 22 , R 31 and p in the general formula (III) are the same as in the above general formulas (I) and (II).
- R 16 is a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, an allyl group, a benzyl group or an aryl group.
- X is a hydrogen atom, a methyl group, —NH 2 , —SH or —SCH 3 , and —NH 2 is particularly preferred.
- a compound having a triazine ring can also be suitably used.
- the following general formula (IV) is an example of an aromatic compound having a triazine ring and an amino group, and has a substituent at the 2,4,6 positions of 1,3,5-triazine, at least one of which It has an amino group at the terminal.
- R 50 , R 51 , R 52 , R 60 and R 61 are each independently any divalent group, for example, having 1 to 6 carbon atoms. Or a substituted or unsubstituted alkylene group.
- the alkylene group may contain ether, carbonyl, carboxy, amide, imide, carbamide, carbamate, or the like at the terminal or between carbon and carbon.
- Z 1 is the same group as Z.
- m and n are each independently an integer of 0 to 6.
- the terminal group A is a hydrogen atom, a primary amino group (—NH 2 ), an alkoxysilyl group or a hydroxysilyl group represented by —Si (OR 41 ) k R 42 (3-k) (k is 1 to An integer of 3, R 41 and R 42 each independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.
- the compound of the general formula (V) can be obtained, for example, by reacting cyanuric halide with 3 molar equivalents of alkylene diamine.
- cyanuric halide When one amino group of alkylenediamine reacts with cyanuric halide and the other amino group is unreacted, a derivative having an amino group at the terminal is obtained as in the above formula (V).
- an aromatic compound having a plurality of triazine rings (a compound in which m in Z is 1 or more) is generated.
- the degree of polymerization of the triazine derivative represented by the general formula (IV) is increased, the solubility in water or an organic solvent may be reduced. Therefore, in the synthesis of a triazine derivative having an amino group at the terminal, it is preferable to use an excess of alkylene diamine with respect to the cyanuric halide.
- the compound represented by the general formula (VI) is a silane coupling agent having a triazine ring and an amino group, and can be obtained, for example, by the method described in WO2013 / 186944.
- the aromatic compound having a triazine ring includes compounds in which an alkylenethio group is bonded to the triazine ring as represented by the following general formulas (VII) and (VIII) (for example, No. 2016-37457).
- R 21 to R 24 each independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a hydroxy group, or a methoxy group.
- R 31 is a primary amino group (—NH 2 ), an alkoxysilyl group or a hydroxysilyl group represented by —Si (OR 41 ) k R 42 (3-k) (k is an integer of 1 to 3, R 41 and R 42 are each independently a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.
- p is an integer of 0 to 16, and q is 1 or 2.
- aromatic compounds examples include silane compounds having an imidazole ring, silane compounds having a triazole ring, and compounds having a triazine ring.
- the aromatic compound used in the film-forming composition is one type. What is necessary is just to have an amino group and an aromatic ring in a molecule
- the content of the aromatic compound in the film-forming composition is not particularly limited, but is preferably 0.1 to 10% by weight from the viewpoint of achieving both the film-forming property on the metal surface and the stability of the solution, 0.2 Is more preferably 5 to 5% by weight, still more preferably 0.3 to 3% by weight.
- the polybasic acid has an action of promoting film formation together with halide ions, and contributes to an improvement in adhesion between the metal layer and the resin.
- the polybasic acid used in the film forming composition of the present invention is an organic acid having two or more carboxy groups.
- Polybasic acids include oxalic acid, malonic acid, methylmalonic acid, succinic acid, methylsuccinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, hexafluoroglutaric acid, maleic acid, tartaric acid, Diglycolic acid, phthalic acid, isophthalic acid, terephthalic acid, homophthalic acid, malic acid, 3,6-dioxaoctanedicarboxylic acid, mercaptosuccinic acid, thiodiglycolic acid, 1,2-phenylenedioxydiacetic acid, 1, Dicarboxylic acids such as 2-phenylenediacetic acid, 1,3-phenylenediacetic acid, 1,4-phenylenediacetic acid, 1,4-phenylenedipropionic acid, 4-carboxyphenoxyacetic acid; citric acid, 1,2,3- Propanetricarbox
- the content of the polybasic acid in the film-forming composition is 0.03 to 10 times by weight with respect to the content of the aromatic compound. By setting the content ratio of the aromatic compound and the polybasic acid within this range, a film having excellent adhesion to the resin can be formed on the metal surface.
- the content of the polybasic acid is preferably 0.05 to 1 times, more preferably 0.08 to 0.8 times, and further preferably 0.1 to 0.5 times that of the aromatic compound.
- the halide ion is a component that promotes film formation on the metal surface, and is preferably at least one selected from chloride ion, bromide ion, and iodide ion. Of these, chloride ions are preferred because of their excellent film-forming properties. Two or more halide ions may be contained in the film-forming composition.
- halide ion source examples include hydrohalic acids such as hydrochloric acid and hydrobromic acid; sodium chloride, calcium chloride, potassium chloride, ammonium chloride, potassium bromide, sodium bromide, potassium iodide, sodium iodide, copper chloride , Copper bromide, zinc chloride, iron chloride, tin bromide and the like. Two or more halide ion sources may be used in combination.
- the concentration of halide ions in the film-forming composition is 5 to 600 mM.
- the halide ion concentration in the film-forming composition is preferably 10 to 400 mM, more preferably 20 to 200 mM.
- the film forming composition of the present invention is prepared by dissolving each of the above components in a solvent.
- the solvent is not particularly limited as long as each of the above components can be dissolved, and water, alcohols such as ethanol and isopropyl alcohol, esters, ethers, ketones, aromatic hydrocarbons, and the like can be used.
- water water from which ionic substances and impurities have been removed is preferable. For example, ion-exchanged water, pure water, ultrapure water, or the like is preferably used.
- the film forming composition of the present invention may contain components other than those described above.
- other components include a surfactant, a stabilizer, a silane coupling agent, and a pH adjuster.
- a surfactant for example, when the above aromatic compound does not have an alkoxysilyl group (that is, when the aromatic compound is not a silane coupling agent), by containing a silane coupling agent as an additive, the metal surface and the resin There is a tendency for the adhesiveness of the to improve.
- another silane coupling agent may be contained as an additive in the composition for film formation.
- the pH of the film forming composition of the present invention is adjusted in the range of 6-9.
- the pH of the film-forming composition is more preferably 6.5-8.
- various acids and alkalis can be used without particular limitation.
- the aromatic compound is a silane coupling agent having an alkoxysilyl group
- a part or all of the silane coupling agent may be condensed in the coating composition for forming a neutral pH region.
- the condensation proceeds excessively, a silane coupling agent may be deposited and the film formability may be reduced. Therefore, even when the silane coupling agent is condensed, the weight average molecular weight is preferably 1500 or less, more preferably 1200 or less, further preferably 1000 or less, and the degree of condensation is suppressed so that the weight average molecular weight falls within this range. It is preferable to do.
- the coating 12 is a coating for improving the adhesion to the resin, and the adhesion between the metal member and the resin is improved by providing the coating on the surface of the metal member.
- the surface of copper foil used for electronic parts such as semiconductor wafers, electronic substrates and lead frames, ornaments, and building materials
- copper plating films electroless copper
- the surface of the plating film and the electrolytic copper plating film examples of the surface of the plating film and the electrolytic copper plating film
- copper materials for various uses such as a linear shape, a rod shape, a tubular shape, and a plate shape.
- the film-forming composition of the present invention is excellent in film-forming properties on the surface of copper or copper alloy. Therefore, copper foil, a copper plating film, a copper material, etc. are preferable as a metal member.
- Formation of the film on the surface of the metal member is performed under the following conditions, for example. First, the surface of the metal member is washed with acid or the like. Next, the metal surface is immersed in the above-described film-forming composition and immersed for about 2 seconds to 5 minutes. The temperature of the solution at this time is preferably about 10 to 50 ° C, more preferably about 15 to 35 ° C. In the immersion treatment, peristalsis may be performed as necessary. Then, the surface treatment metal member 10 which has the film 12 on the surface of the metal member 11 is obtained by removing a solvent by drying.
- the above-mentioned film-forming composition is excellent in film-forming property on the metal surface and has high adsorbability on the metal surface. Therefore, even if washing is performed after the coating is formed, the coating formation state on the metal surface is maintained. Moreover, when a film forming composition is applied to a composite member of a metal and another material, a film can be selectively formed on the metal surface.
- the coating 12 is formed only on one side of the plate-like metal member 11, but the coating may be formed on both sides of the metal member.
- the coating is preferably formed on the entire bonding surface with the resin.
- the method for forming the film on the surface of the metal member is not limited to the dipping method, and an appropriate coating method such as a spray method or a bar coating method can be selected.
- the metal-resin composite 50 shown in FIG. 2 is obtained by bonding the resin member 20 on the surface of the surface-treated metal member 10 on which the coating film 12 is formed.
- the resin member (resin layer) 20 is laminated only on one surface of the plate-like metal member 11 via the coating 12, but the resin member may be bonded to both surfaces of the metal member.
- a method for joining the surface-treated metal member 10 and the resin member 20 methods such as laminating press, laminating, coating, injection molding, and transfer molding can be employed.
- a metal-resin laminate used for a printed wiring board or the like can be obtained by laminating a resin layer on the surface of a copper layer or a copper alloy layer via an adhesive layer.
- the resin constituting the resin member is not particularly limited, and acrylonitrile / styrene copolymer resin (AS resin), acrylonitrile / butadiene / styrene copolymer resin (ABS resin), fluorine resin, polyamide, polyethylene, polyethylene terephthalate, polychlorinated resin.
- Thermosetting resins such as vinylidene, polyvinyl chloride, polycarbonate, polystyrene, polysulfone, polypropylene, and liquid crystal polymers, and epoxy resins, phenol resins, polyimides, polyurethanes, bismaleimide / triazine resins, modified polyphenylene ethers, cyanate esters, etc.
- the resin include ultraviolet curable resins such as ultraviolet curable epoxy resins and ultraviolet curable acrylic resins. These resins may be modified with functional groups, and may be reinforced with glass fibers, aramid fibers, other fibers, and the like.
- the film formed on the metal surface using the film forming composition of the present invention is excellent in the adhesion between the metal and the resin, and therefore on the film 12 provided on the surface of the metal member without any other layer.
- the resin member 20 can be directly joined. That is, by using the film-forming composition of the present invention, a metal having high adhesion can be obtained by forming a film on the surface of a metal member and bonding a resin member directly on the surface without any other treatment. -A resin composite is obtained.
- An adhesive layer made of a silane coupling agent or the like may be formed on the coating 12 according to the type of resin material to be joined.
- the coating film 12 formed on the metal surface has an effect as a base for fixing an adhesive component such as a silane coupling agent to the metal surface in addition to being excellent in adhesiveness with the resin.
- Electrolytic copper foil (3EC-III, manufactured by Mitsui Mining & Smelting Co., Ltd., thickness 35 ⁇ m) is cut to 100 mm ⁇ 100 mm, immersed in a 6.25 wt% sulfuric acid aqueous solution at room temperature for 20 seconds to perform rust removal treatment, and then washed with water. -The dried one was used as a test copper foil (test piece).
- Silane coupling agent A is an imidazole-based silane coupling agent represented by the following formula, and a commercially available product (JX metal IS1000) was used.
- R 1 to R 4 are each an alkyl group, and n is an integer of 1 to 3.
- Silane coupling agent B is N, N′bis (2-aminoethyl) -6- (3-triethoxysilylpropyl) amino-1,3,5-triazine-2,4-diamine represented by the following formula: And was synthesized according to Example 1 of WO2013 / 186941.
- Silane coupling agent C is 5- (3-trimethoxysilylpropylsulfanyl) -4H-1,2,4-triazol-3-amine represented by the following formula, and is a reference example of JP-A-2016-56449. Synthesized according to 1-2.
- the silane coupling agent D is N- (1H-imidazol-2-ylmethyl) -3-trihydroxysilyl-propan-1-amine represented by the following formula, which is synthesized according to Reference Example 1 of JP-A-2015-214743. did.
- Silane coupling agent E is N-phenyl-3-aminopropyltrimethoxysilane represented by the following formula, and a commercially available product (Shin-Etsu Silicone KBM-573) was used.
- Silane coupling agent F is N- (2-aminoethyl) -3-aminopropyltrimethoxysilane represented by the following formula, and a commercially available product (Shin-Etsu Silicone KBM-603) was used.
- the “melamine compound” is a compound represented by the following formula, and was synthesized by the following synthesis example.
- a dry film resist having a thickness of 20 ⁇ m was brought into close contact with the test piece subjected to the above-described film formation treatment, and then the resist was photocured by irradiation with UV light having an integrated light amount of 100 mJ. Cuts were made at 1 cm intervals on the surface of the cured resist, and then immersed in 6N hydrochloric acid for 10 minutes. After washing and drying, an adhesive tape was attached to the resist surface and peeled off, and the adhesion between copper and the resist was evaluated in the following four stages. 4: The resist is maintained in a state of being bonded to copper, and the resist does not move to the tape side. 3: The resist peels from the copper along the cut portion, and moves to the tape side. 2: The resist in the cut portion and its peripheral portion. Peels from copper and moves to the tape side 1: Resist peels from copper and moves to the tape side at portions other than the cut portion and its peripheral portion
- Table 1 shows the compositions and evaluation results of the solutions of Examples and Comparative Examples.
- Comparative Examples 2, 3, and 4 the same melamine compounds as in Examples 2 and 3 were used as aromatic compounds, but no film was formed.
- the pH is low, and in Comparative Example 3, the pH is high.
- Comparative Example 4 it is considered that the high halide ion concentration is the cause of the decrease in film formability.
- Comparative Example 6 using the same aromatic compound (silane coupling agent A) as in Examples 4 and 5, and Comparative Example 8 using the same aromatic compound (silane coupling agent B) as in Examples 6-8 , 9, no film was formed.
- Comparative Examples 6 and 8 it is considered that the low halide ion concentration is the cause of the decrease in film formation.
- Comparative Example 9 it is considered that the small amount of polybasic acid is the cause of the decrease in film forming property.
- Comparative Examples 1 to 4, 6, 8, and 9 in which no film was formed on the surface of the copper foil, the adhesion between the copper foil and the dry film resist was low. On the other hand, in Comparative Examples 5 and 6, the adhesiveness between the copper foil and the dry film resist was low as in the case where the film was not formed although the film was formed. In Comparative Example 5, it is considered that the large amount of polybasic acid is the cause of the decrease in adhesiveness. In Comparative Example 7, it is considered that the use of acetic acid, which is a monocarboxylic acid, without using a polybasic acid is a cause of a decrease in adhesiveness.
- the evaluation score for the adhesion between copper and the resist was 2 or more, indicating good adhesion.
- a difference in the adhesion score occurred by changing the blending amounts of the polybasic acid and the halide. From these results, by adjusting the concentration of polybasic acid and halide ions used with aromatic compounds, it is possible to improve the film-formability on the metal surface and form a composite with excellent adhesion between metal and resin. I understand.
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Abstract
Description
本発明の被膜形成用組成物は、金属表面への被膜形成に用いられる。被膜形成用組成物は、一分子中にアミノ基および芳香環を有する芳香族化合物、多塩基酸、およびハロゲン化物イオンを含む、pH6~9の溶液である。以下、本発明の被膜形成用組成物に含まれる各成分について説明する。
芳香族化合物は、被膜の主成分となる材料であり、一分子中にアミノ基および芳香環を有する。
芳香族化合物の一例として、下記一般式(I)および(II)で表されるイミダゾールシラン化合物が挙げられる(例えば、特開2015-214743号)。
被膜形成組成物中の芳香族化合物の含有量は特に限定されないが、金属表面への被膜形成性と溶液の安定性とを両立する観点から、0.1~10重量%が好ましく、0.2~5重量%がより好ましく、0.3~3重量%がさらに好ましい。
多塩基酸は、ハロゲン化物イオンと共に被膜形成を促進する作用を有し、金属層と樹脂との接着性向上にも寄与する。本発明の被膜形成用組成物に用いられる多塩基酸は、2以上のカルボキシ基を有する有機酸である。多塩基酸としては、シュウ酸、マロン酸、メチルマロン酸、コハク酸、メチルコハク酸、グルタル酸、アジピン酸、ピメリン酸、スベリン酸、アゼライン酸、セバシン酸、ヘキサフルオログルタル酸、マレイン酸、酒石酸、ジグリコール酸、フタル酸、イソフタル酸、テレフタル酸、ホモフタル酸、リンゴ酸、3,6-ジオキサオクタンジカルボン酸、メルカプトコハク酸、チオジグリコール酸、1,2-フェニレンジオキシジ酢酸、1,2-フェニレンジ酢酸、1,3-フェニレンジ酢酸、1,4-フェニレンジ酢酸、1,4-フェニレンジプロピオン酸、4-カルボキシフェノキシ酢酸等のジカルボン酸;クエン酸、1,2,3-プロパントリカルボン酸、1,2,3-ベンゼントリカルボン酸、1,2,4-ベンゼントリカルボン酸、1,3,5-ベンゼントリカルボン酸、1,3,5-シクロヘキサントリカルボン酸、1-プロペン-1,2,3-トリカルボン酸等のトリカルボン酸;1,2,3,4-ブタンテトラカルボン酸、テトラヒドロフラン-2,3,4,5-テトラカルボン酸、1,2,4,5-ベンゼンテトラカルボン酸、1,4,5,8-ナフタレンテトラカルボン酸、1,2,3,4-シクロブタンテトラカルボン酸、1,2,3,4-ブタンテトラカルボン酸等のテトラカルボン酸;1,2,3,4,5,6-シクロヘキサンヘキサカルボン酸、メリチン酸等のヘキサカルボン酸等が挙げられる。これらの中でも、マロン酸、マレイン酸等の二価のカルボン酸(ジカルボン酸)が好ましい。
ハロゲン化物イオンは、金属表面への被膜形成を促進する成分であり、塩化物イオン、臭化物イオンおよびヨウ化物イオンから選択される1種以上が好ましい。中でも、被膜形成性に優れることから、塩化物イオンが好ましい。被膜形成用組成物中には2種以上のハロゲン化物イオンが含まれていてもよい。
上記の各成分を溶媒に溶解することにより、本発明の被膜形成組成物が調製される。溶媒は、上記各成分を溶解可能であれば特に限定されず、水、エタノールやイソプロピルアルコール等のアルコール類、エステル類、エーテル類、ケトン類、芳香族炭化水素等を用いることができる。水としては、イオン性物質や不純物を除去した水が好ましく、例えばイオン交換水、純水、超純水等が好ましく用いられる。
本発明の被膜形成用組成物には、上記以外の成分が含まれていてもよい。他の成分としては、界面活性剤、安定化剤、シランカップリング剤、pH調整剤等が挙げられる。例えば、上記の芳香族化合物がアルコキシシリル基を有していない場合(すなわち芳香族化合物がシランカップリング剤ではない場合)、添加剤としてシランカップリング剤を含有することにより、金属表面と樹脂との接着性が向上する傾向がある。また、上記の芳香族化合物がシランカップリング剤である場合も、被膜形成用組成物中に、添加剤として他のシランカップリング剤が含まれていてもよい。
金属部材の表面に上記の被膜形成組成物を接触させ、必要に応じて溶媒を乾燥除去することにより、図1に示すように、金属部材11の表面に被膜12が形成される。被膜12は、樹脂との接着性向上用被膜であり、金属部材の表面に被膜が設けられることにより、金属部材と樹脂との接着性が向上する。
まず、酸等により、金属部材の表面を洗浄する。次に、上記の被膜形成用組成物に金属表面を浸漬し、2秒~5分間程度浸漬処理をする。この際の溶液の温度は、10~50℃程度が好ましく、より好ましくは15~35℃程度である。浸漬処理では、必要に応じて搖動を行ってもよい。その後、乾燥により溶媒を除去することにより、金属部材11の表面に被膜12を有する表面処理金属部材10が得られる。
表面処理金属部材10の被膜12形成面上に、樹脂部材20を接合することにより、図2に示す金属‐樹脂複合体50が得られる。なお、図2では、板状の金属部材11の片面にのみ被膜12を介して樹脂部材(樹脂層)20が積層されているが、金属部材の両面に樹脂部材が接合されてもよい。
電解銅箔(三井金属鉱業社製 3EC-III、厚み35μm)を100mm×100mmに裁断し、常温の6.25重量%硫酸水溶液に20秒間浸漬揺動して除錆処理を行った後、水洗・乾燥したものを試験用銅箔(テストピース)として使用した。
表1に示す成分を所定の配合量(濃度)となるようにイオン交換水に溶解した後、表1に示すpHとなるように、1.0N塩酸または1.0N水酸化ナトリウム水溶液を加えて、溶液を調製した。
50~55℃に維持した無水エチレンジアミン(1.5モル)のTHF溶液に、塩化シアヌル(0.1モル)のTHF溶液を滴下した。その後、50~55℃で3時間反応させた後、20℃まで冷却した。反応溶液に水酸化ナトリウム水溶液およびイソプロピルアルコールを加え、溶媒を留去した。その後、脱水エタノールを加え、沈殿した塩化ナトリウムを濾別した。濾液のエタノールおよびエチレンジアミンを留去して、水あめ状の反応生成物を得た。
<被膜形成性>
表1の溶液(25℃)中に、テストピースを30秒浸漬した後、液切りを行い、室温で3分風乾した。その後、水洗および乾燥を行い、目視での色調変化、および赤外線吸収(反射吸収)スペクトルによる有機成分由来ピークの有無から、被膜形成性を評価した。銅箔表面の色調の変化がみられ、かつ有機成分由来のピークが確認されたものを「良」、色調の変化はみられたが有機成分由来のピークが確認されなかったもの(銅箔の表面が侵食されたのみで、被膜が形成されなかったもの)を「不良」とした。
上記の被膜形成処理を行ったテストピース上に、厚み20μmのドライフィルムレジストを密着させた後、積算光量100mJのUV光を照射してレジストを光硬化させた。硬化後のレジストの表面に1cm間隔で切り込みを入れた後、6N塩酸に10分間浸漬した。水洗および乾燥後に、レジスト表面に粘着テープを貼り合わせ、引き剥しを行い、以下の4段階で、銅とレジスト間の接着性を評価した。
4:レジストが銅と接着した状態を維持しており、レジストがテープ側に移らない
3:切り込み部分に沿ってレジストが銅から剥離し、テープ側に移る
2:切り込み部分およびその周辺部分においてレジストが銅から剥離し、テープ側に移る
1:切り込み部分およびその周辺部以外においてもレジストが銅から剥離し、テープ側に移る
Claims (7)
- 金属表面に、樹脂との接着性向上用被膜を形成するための被膜形成用組成物であって、
一分子中にアミノ基および芳香環を有する芳香族化合物;2以上のカルボキシ基を有する多塩基酸;ならびにハロゲン化物イオンを含み、
前記多塩基酸の含有量が、前記芳香族化合物の含有量の0.05~10倍であり、
前記ハロゲン化物イオンの濃度が5~600mMであり、
pHが6~9の溶液である、被膜形成用組成物。 - 前記多塩基酸が二価のカルボン酸である、請求項1に記載の被膜形成用組成物。
- 前記芳香族化合物の芳香環が含窒素芳香環である、請求項1または2に記載の被膜形成用組成物。
- 前記芳香族化合物が第一級アミノ基または第二級アミノ基を有する、請求項1~3のいずれか1項に記載の被膜形成用組成物。
- 金属部材の表面に、請求項1~4のいずれか1項に記載の被膜形成用組成物を接触させることにより、金属部材の表面に被膜が形成される、表面処理金属部材の製造方法。
- 前記金属部材が銅または銅合金である、請求項5に記載の表面処理金属部材の製造方法。
- 請求項5または6に記載の方法により金属部材の表面に被膜を形成後、前記被膜上に樹脂部材を接合する、金属‐樹脂複合体の製造方法。
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US10329453B2 (en) | 2019-06-25 |
KR101959705B1 (ko) | 2019-03-18 |
EP3438220B1 (en) | 2020-11-25 |
TWI659829B (zh) | 2019-05-21 |
TW201806756A (zh) | 2018-03-01 |
EP3438220A1 (en) | 2019-02-06 |
JP2017203073A (ja) | 2017-11-16 |
CN109153879A (zh) | 2019-01-04 |
KR20180128499A (ko) | 2018-12-03 |
EP3438220A4 (en) | 2019-05-08 |
US20190127606A1 (en) | 2019-05-02 |
CN109153879B (zh) | 2019-08-16 |
JP6232605B2 (ja) | 2017-11-22 |
SG11201809498PA (en) | 2018-11-29 |
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