WO2023047971A1 - 接着剤樹脂組成物 - Google Patents
接着剤樹脂組成物 Download PDFInfo
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- WO2023047971A1 WO2023047971A1 PCT/JP2022/033786 JP2022033786W WO2023047971A1 WO 2023047971 A1 WO2023047971 A1 WO 2023047971A1 JP 2022033786 W JP2022033786 W JP 2022033786W WO 2023047971 A1 WO2023047971 A1 WO 2023047971A1
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- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- UWNXTLKLPYIBSO-UHFFFAOYSA-L nickel(2+);propan-2-yloxymethanedithioate Chemical compound [Ni+2].CC(C)OC([S-])=S.CC(C)OC([S-])=S UWNXTLKLPYIBSO-UHFFFAOYSA-L 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- FPLYNRPOIZEADP-UHFFFAOYSA-N octylsilane Chemical compound CCCCCCCC[SiH3] FPLYNRPOIZEADP-UHFFFAOYSA-N 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- OIJHFHYPXWSVPF-UHFFFAOYSA-N para-Nitrosodiphenylamine Chemical compound C1=CC(N=O)=CC=C1NC1=CC=CC=C1 OIJHFHYPXWSVPF-UHFFFAOYSA-N 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- HVNWRBWNOPYOER-UHFFFAOYSA-N pentane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C(C)C(C(O)=O)C(C(O)=O)CC(O)=O HVNWRBWNOPYOER-UHFFFAOYSA-N 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- YLLIGHVCTUPGEH-UHFFFAOYSA-M potassium;ethanol;hydroxide Chemical compound [OH-].[K+].CCO YLLIGHVCTUPGEH-UHFFFAOYSA-M 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 235000011962 puddings Nutrition 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- HZXJVDYQRYYYOR-UHFFFAOYSA-K scandium(iii) trifluoromethanesulfonate Chemical compound [Sc+3].[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F HZXJVDYQRYYYOR-UHFFFAOYSA-K 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- LUEGQDUCMILDOJ-UHFFFAOYSA-N thiophene-2,3,4,5-tetracarboxylic acid Chemical compound OC(=O)C=1SC(C(O)=O)=C(C(O)=O)C=1C(O)=O LUEGQDUCMILDOJ-UHFFFAOYSA-N 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000005029 tin-free steel Substances 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical class O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- CNUJLMSKURPSHE-UHFFFAOYSA-N trioctadecyl phosphite Chemical compound CCCCCCCCCCCCCCCCCCOP(OCCCCCCCCCCCCCCCCCC)OCCCCCCCCCCCCCCCCCC CNUJLMSKURPSHE-UHFFFAOYSA-N 0.000 description 1
- WGKLOLBTFWFKOD-UHFFFAOYSA-N tris(2-nonylphenyl) phosphite Chemical compound CCCCCCCCCC1=CC=CC=C1OP(OC=1C(=CC=CC=1)CCCCCCCCC)OC1=CC=CC=C1CCCCCCCCC WGKLOLBTFWFKOD-UHFFFAOYSA-N 0.000 description 1
- JZNDMMGBXUYFNQ-UHFFFAOYSA-N tris(dodecylsulfanyl)phosphane Chemical compound CCCCCCCCCCCCSP(SCCCCCCCCCCCC)SCCCCCCCCCCCC JZNDMMGBXUYFNQ-UHFFFAOYSA-N 0.000 description 1
- QQBLOZGVRHAYGT-UHFFFAOYSA-N tris-decyl phosphite Chemical compound CCCCCCCCCCOP(OCCCCCCCCCC)OCCCCCCCCCC QQBLOZGVRHAYGT-UHFFFAOYSA-N 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
Classifications
-
- 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
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D65/02—Wrappers or flexible covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
-
- 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
-
- 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
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
- C09J167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
Definitions
- the present invention includes an adhesive resin composition, a laminate or adhesive sheet having an adhesive layer comprising the adhesive resin composition, a printed wiring board or packaging material comprising the laminate as a constituent, and an adhesive sheet as constituent elements.
- the present invention relates to a laminated film for decorating a dimensional molded product or a film for laminating metal cans.
- adhesives have been used in a variety of fields, but due to the diversification of purposes of use, they have superior adhesion to various plastic films, metals, glass epoxy, and other substrates compared to conventionally used adhesives. , heat resistance, etc., are required.
- adhesives for circuit boards such as flexible printed wiring boards (hereinafter sometimes abbreviated as FPC) are required to have adhesiveness, workability, electrical properties, and storage stability.
- FPC flexible printed wiring boards
- epoxy/acrylic butadiene adhesives, epoxy/polyvinyl butyral adhesives, and the like have been used for this purpose.
- Patent Document 1 a resin composition for adhesives containing polyester-polyurethane and an epoxy resin as main components has been disclosed.
- Patent Document 1 the composition described in Patent Document 1 was not fully satisfactory in terms of lead-free solder heat resistance. Furthermore, the pot life after blending with the curing agent, which is important in use, was not sufficient.
- An object of the present invention is to provide an adhesive that has a good pot life, solder heat resistance, and excellent adhesion to various substrates by being able to cure with a polyester resin alone without substantially containing a curing agent. It is to provide a resin composition.
- the inventors of the present invention have found that a polyester resin composition having a certain amount or more of tetrahydrofuran-insoluble matter when subjected to a predetermined heat treatment, substantially without using a curing agent, It was found that the polyester resin alone can be cured. Furthermore, the present inventor specified the resin composition and controlled the amount of catalyst to achieve an excellent balance between curability and adhesiveness to various substrates, no harmful outgassing, and compatible with lead-free solder. The inventors have found that an adhesive resin composition having high solder heat resistance and remarkably improved pot life can be obtained, which led to the completion of the present invention.
- the present invention consists of the following configurations.
- An adhesive resin composition comprising a polyester resin (A) and satisfying the following requirements (i) to (ii).
- the adhesive resin composition does not substantially contain a curing agent.
- the tetrahydrofuran-insoluble content of the adhesive resin composition after heat treatment at 200° C. for 1 hour is 10% by mass or more.
- a diol (a) having two primary hydroxyl groups and no alicyclic structure is included, and a diol (b) having an alicyclic structure and 3.
- a polycarboxylic acid component constituting the polyester resin (A) contains a polycarboxylic acid having a benzene skeleton, and further from an aliphatic polycarboxylic acid, an alicyclic polycarboxylic acid, and a polycarboxylic acid having a naphthalene skeleton
- the adhesive resin composition according to [1] or [2] containing at least one selected from the group consisting of: [6]
- the adhesive resin composition according to [1] or [2] wherein the polyester resin (A) contains an unsaturated dicarboxylic acid (d) as a structural unit.
- the adhesive resin composition according to [1] or [2] which further contains one or more catalysts (B).
- the present invention since it does not substantially contain a curing agent, it has excellent pot life, high solder heat resistance, and excellent adhesive properties to various substrates. can provide.
- the adhesive resin composition of the present invention is an adhesive resin composition characterized by containing a polyester resin (A) and satisfying the following requirements (i) to (ii). (i) The adhesive resin composition does not substantially contain a curing agent. (ii) The tetrahydrofuran-insoluble content of the adhesive resin composition after heat treatment at 200° C. for 1 hour is 10% by mass or more.
- Requirement (i) provides that the adhesive resin composition of the present invention contains substantially no curing agent.
- This "substantially does not contain a curing agent” means that "the content of the curing agent is less than 1 part by mass (in terms of solid content) relative to 100 parts by mass (in terms of solid content) of the polyester resin (A)". means. Since the adhesive resin composition of the present invention self-crosslinks by heating, it can be cured without substantially containing a curing agent.
- the curing agent refers to a known curing agent that reacts with the polyester resin (A) of the present invention to form a crosslinked structure.
- Reaction, cation addition reaction, or anion addition reaction, etc. reaction to generate intermolecular carbon-carbon bonds, condensation reaction with polyvalent carboxylic acid groups and polyhydric alcohol groups in polyester resin, polyaddition reaction, Alternatively, formation of an intermolecular bond by transesterification or the like can be mentioned.
- curing agents include phenol resins, amino resins, isocyanate compounds, epoxy compounds, ⁇ -hydroxylamide compounds, unsaturated bond-containing resins, and the like.
- the content of the curing agent is less than 1 part by mass with respect to 100 parts by mass of the polyester resin (A) (solid content). More preferably less than 0.5 parts by weight, even more preferably less than 0.1 parts by weight, and most preferably no curing agent at all. If the content of the curing agent is more than the above range, the pot life is poor. Moreover, not only is it inferior in terms of economy, but there is a possibility that adhesiveness may be lowered due to self-condensation reaction between curing agents.
- Requirement (ii) specifies that the adhesive resin composition of the present invention has a tetrahydrofuran-insoluble content of 10% by mass or more when heat-treated at 200° C. for 1 hour.
- the adhesive resin composition of the present invention self-crosslinks by heating.
- the amount of tetrahydrofuran-insoluble matter during heat treatment is an index of the degree of self-crosslinking due to this heating.
- the tetrahydrofuran (THF)-insoluble matter is 10% by mass or more, it is possible to obtain an adhesive resin composition having sufficient curability and an excellent balance between soldering heat resistance and adhesiveness, and an adhesive layer thereof.
- the adhesive layer refers to a layer of the adhesive resin composition after the adhesive resin composition of the present invention has been applied to a substrate and dried.
- the THF-insoluble content is preferably 30% by mass or more, more preferably 50% by mass or more, and still more preferably 70% by mass. If it is less than 10% by mass, the curability will be insufficient, and there is a risk that the adhesiveness and soldering heat resistance will decrease.
- the amount of tetrahydrofuran-insoluble matter during heat treatment can be controlled by a conventionally known method. or by blending a catalyst.
- the tetrahydrofuran-insoluble content is 10% by mass or more when heat-treated at 200°C for 1 hour
- the adhesive resin composition is coated on a copper foil so that the thickness after drying is 10 ⁇ m, Heat at 200 ° C. for 1 hour, measure 10 cm in length and 2.5 cm in width, and let the mass before THF immersion be (X).
- the mass of the sample after being dried for a minute is defined as the mass after THF immersion (Y), and the THF-insoluble content obtained by the following formula is 10% by mass or more.
- THF insoluble content (% by mass) [ ⁇ (Y) - copper foil mass ⁇ / ⁇ (X) - copper foil mass ⁇ ] x 100
- polyester resin (A) used in the present invention will be explained.
- the polyester resin (A) is composed of a polycarboxylic acid component and a polyol component.
- the polyester resin (A) preferably has, as a polyol component, a diol (a) having two primary hydroxyl groups and no alicyclic structure (hereinafter sometimes referred to as component (a)).
- a diol (a) having two primary hydroxyl groups and no alicyclic structure in the polyester resin (A) include ethylene glycol, 1,3-propanediol, 2-butyl-2-ethyl-1, 3-propanediol, 2-methyl-1,3-propanediol, neopentyl glycol, 3-methyl-1,5-pentanediol, 1,4-butanediol, 2,4-diethyl-1,5-pentanediol , 1,6-hexanediol, 2-methyl-1,8-octanediol, 3-methyl-1,6-hexanediol, 4-methyl-1,7-heptanediol, 4-methyl
- the copolymerization ratio of the diol (a) having two primary hydroxyl groups and no alicyclic structure in the polyester resin (A) is preferably 20 to 80 mol%, more preferably 20 to 80 mol% of the total polyol component. It is 60 mol %, more preferably 20 to 40 mol %. Within the above range, good curability and solder heat resistance are achieved.
- the polyester resin (A) preferably has a diol (b) having an alicyclic structure as a polyol component. Having a diol (b) having an alicyclic structure (hereinafter sometimes referred to as component (b)) facilitates compatibility between adhesiveness and soldering heat resistance.
- component (b) examples include 1,2-cyclohexanedimethanol, 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol and tricyclodecane glycols. , hydrogenated bisphenols, etc., and one or more of these can be selected and used. Among them, it is preferable to use 1,4-cyclohexanedimethanol from the viewpoint of curability, adhesiveness and solder heat resistance.
- the copolymerization ratio of the diol (b) having an alicyclic structure that constitutes the polyester resin (A) is preferably 5 to 50 mol%, more preferably 10 to 40 mol%, and still more preferably 20% of the total polyol component. ⁇ 30 mol%. Adhesiveness becomes favorable as it is in the said range.
- the polyester resin (A) is a diol (c) having one primary hydroxyl group and one secondary hydroxyl group and having no alicyclic structure as a polyol component (hereinafter sometimes referred to as the (c) component). It is preferred to have Examples of the diol (c) having one primary hydroxyl group and one secondary hydroxyl group and no alicyclic structure in the polyester resin (A) include 1,2-propylene glycol and 1,2-butane. Diols and the like can be mentioned, and one or more of these can be selected and used. Among them, it is preferable to use 1,2-propylene glycol.
- the copolymerization ratio of the diol (c) having one primary hydroxyl group and one secondary hydroxyl group and not having an alicyclic structure in the polyester resin (A) is 5 to 75 mol% of the total polyol component. It is preferably 10 to 65 mol %, and still more preferably 15 to 50 mol %. Within the above range, good curability and solder heat resistance are obtained.
- the polyester resin (A) preferably contains either or both of the above component (a) and the components (b) and (c) as polyol components.
- Component (a) is likely to form an ester bond, while component (b) and component (c) are more likely to cleave the ester bond than component (a).
- c) component promotes rearrangement and recombination of ester bonds during heat treatment, increases crosslink density, increases THF insoluble content, curability, solder heat resistance, adhesiveness It is speculated that it is possible to form an adhesive layer that has both
- the polycarboxylic acid component constituting the polyester resin (A) is not particularly limited, but polycarboxylic acids having a benzene skeleton such as terephthalic acid, isophthalic acid, and orthophthalic acid, 2,6-naphthalenedicarboxylic acid, and 1,4-naphthalene.
- Dicarboxylic acids, polycarboxylic acids having a naphthalene skeleton such as 1,8-naphthalene dicarboxylic acid, and the like can be mentioned. These may be used alone or in combination of two or more.
- a polycarboxylic acid having a benzene skeleton and a polycarboxylic acid having a naphthalene skeleton in combination in terms of both adhesiveness and solder heat resistance.
- polycarboxylic acid having a benzene skeleton terephthalic acid is preferred, and as the polycarboxylic acid having a naphthalene skeleton, 2,6-naphthalenedicarboxylic acid is preferred.
- polyester resin (A) examples include aliphatic polycarboxylic acid components and alicyclic polycarboxylic acid components.
- Aliphatic polycarboxylic acid components include succinic acid, glutaric acid, adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, dimer acid and the like.
- Alicyclic polycarboxylic acid components include 1,4-cyclohexanedicarboxylic acid, tetrahydrophthalic acid, hexahydroisophthalic acid, and 1,2-cyclohexenedicarboxylic acid. One or more of these can be selected and used.
- Adhesiveness can be improved by containing an aliphatic polycarboxylic acid component or an alicyclic polycarboxylic acid component.
- adipic acid and 1,4-cyclohexanedicarboxylic acid are preferred in terms of reactivity and economy.
- the copolymerization ratio thereof is preferably 5 to 40 mol % in the total polycarboxylic acid component. More preferably 15 to 35 mol %. If the content is out of the above range, the glass transition temperature of the polyester resin (A) may be greatly lowered and the soldering heat resistance may be lowered.
- the unsaturated dicarboxylic acid (d) is included as a structural unit as the polycarboxylic acid component that constitutes the polyester resin (A).
- the unsaturated dicarboxylic acid (d) include fumaric acid, maleic acid, itaconic acid, citraconic acid, 2,5-norbornanedicarboxylic acid, tetrahydrophthalic acid, and acid anhydrides thereof. More than one species can be used.
- the copolymerization ratio of the unsaturated dicarboxylic acid (d) is preferably 5 to 20 mol% of the total polycarboxylic acid component. More preferably 10 to 15 mol %. By being within the above range, both adhesiveness and soldering heat resistance can be achieved.
- the polyester resin (A) preferably has a branched structure. Having a branched structure means having a branched structure in the main chain of the polyester.
- a polycarboxylic acid component and/or a polyol An example is a method of copolymerizing a tri- or more functional component as a part of the component.
- Tri- or more functional polycarboxylic acid components include, for example, trimellitic acid, pyromellitic acid, benzophenone tetracarboxylic acid, and tri- or more functional polyols include glycerin, trimethylolethane, trimethylolpropane, mannitol, sorbitol, pentaerythritol, ⁇ -methylglucoside and the like. Since the polyester resin (A) has a branched structure, the crosslink density increases when rearrangement and recombination of ester bonds occur during heat treatment, so the THF insoluble content increases, curability, solder heat resistance, adhesion can improve sexuality.
- the copolymerization ratio of the tri- or higher functional polycarboxylic acid component is preferably 0.1 mol% or more, more preferably 0.5 mol% or more, when the total polycarboxylic acid component is 100 mol%, More preferably, it is 1 mol % or more. Also, it is preferably 7 mol % or less, more preferably 6 mol % or less, still more preferably 5 mol % or less, and particularly preferably 4 mol % or less.
- the copolymerization ratio of the trifunctional or higher polyol component is preferably 0.1 mol% or more, more preferably 0.5 mol% or more, still more preferably 1, when the total polyol component is 100 mol%. mol% or more.
- the polyester resin loses its flexibility, and the adhesion may be lowered, or gelation may occur during polymerization of the polyester.
- Raw materials derived from biomass resources can be used for the polycarboxylic acid component and the polyol component that constitute the polyester resin (A).
- Biomass resources are stored by converting the energy of sunlight into starch and cellulose through the photosynthesis of plants, the bodies of animals that grow by eating plants, and the bodies of plants and animals that are processed. This includes products that can be Among these, more preferable biomass resources are plant resources, such as wood, rice straw, rice husk, rice bran, old rice, corn, sugar cane, cassava, sago palm, bean curd refuse, corn cob, tapioca cass, bagasse, vegetable oil cake, potato.
- buckwheat soybeans, oils and fats, used paper, papermaking residue, marine product residue, livestock excrement, sewage sludge, food waste, and the like. More preferred are corn, sugar cane, cassava and sago palm.
- the esterification/exchange reaction all monomer components and/or low polymers thereof are heated and melted for reaction.
- the esterification/exchange reaction temperature is preferably 180 to 250°C, more preferably 200 to 250°C.
- the reaction time is preferably 1.5 to 10 hours, more preferably 3 to 6 hours.
- the reaction time is the time from reaching the desired reaction temperature to the subsequent polycondensation reaction.
- the polyol component is distilled off from the esterified product obtained by the esterification reaction at a temperature of 220 to 280° C. under reduced pressure, and the polycondensation reaction proceeds until the desired molecular weight is reached.
- the reaction temperature for polycondensation is preferably 220 to 280°C, more preferably 240 to 275°C.
- the degree of pressure reduction is preferably 130 Pa or less. If the degree of pressure reduction is insufficient, the polycondensation time tends to become long, which is not preferable. As for the pressure reduction time from the atmospheric pressure to 130 Pa or less, it is preferable to reduce the pressure gradually over 30 to 180 minutes.
- an organic titanate compound such as tetrabutyl titanate, an organic tin compound such as germanium dioxide, antimony oxide, and tin octylate is used for polymerization.
- Organic titanic acid compounds are preferable from the viewpoint of reaction activity, and germanium dioxide is preferable from the viewpoint of resin coloring.
- the glass transition temperature of the polyester resin (A) is preferably 5 to 50°C, more preferably 10 to 40°C, from the viewpoint of solder heat resistance and adhesiveness. When the glass transition temperature is within the above range, the solder heat resistance and the adhesiveness to the substrate will be better.
- the reduced viscosity of the polyester resin (A) is preferably 0.2-0.6 dl/g, more preferably 0.3-0.5 dl/g.
- the reduced viscosity is equal to or higher than the lower limit, the cohesive force of the resin results in better adhesion to the substrate.
- the reduced viscosity is equal to or less than the upper limit, the melt viscosity and the solution viscosity are appropriate, and workability is improved.
- the number of terminal hydroxyl groups can be increased, making it easier to impart a sufficient acid value.
- the polyester resin (A) preferably has an acid value of 100 eq/ton or more. It is preferably 200 eq/ton or more, more preferably 250 eq/ton or more, and still more preferably 300 eq/ton or more.
- an acid value of 100 eq/ton or more. It is preferably 200 eq/ton or more, more preferably 250 eq/ton or more, and still more preferably 300 eq/ton or more.
- the acid value is at least the above lower limit, the curing reaction tends to proceed more predominantly than the thermal decomposition reaction when heated to 200° C., and the curability tends to improve.
- aqueous dispersion becomes easy because an acid value has more than the said lower limit.
- the acid value it is preferably 1200 eq/ton or less in order to reduce the amount of unreacted acid components and oligomers during the acid addition reaction.
- the acid value of the polyester resin (A) can be imparted by any method.
- a method of imparting an acid value a method of addition reaction of a polycarboxylic anhydride in the late stage of polycondensation, a method of increasing the acid value in the prepolymer (oligomer) stage and then polycondensing it to obtain a polyester having an acid value
- the former method of addition reaction is preferred because of ease of operation and easy acquisition of the target acid value.
- carboxylic acid monoanhydrides include, for example, phthalic anhydride, succinic anhydride, maleic anhydride, trimellitic anhydride, itaconic anhydride, citraconic anhydride, monoanhydride of 5-(2,5-dioxotetrahydrofurfuryl)-3-cyclohexene-1,2-dicarboxylic acid, hexahydrophthalic anhydride, tetrahydrophthalic anhydride acids, etc., and one or more of these can be selected and used.
- trimellitic anhydride is preferred from the viewpoint of versatility and economy.
- carboxylic acid polyanhydrides include, for example, pyromellitic anhydride, 1,2,3,4- butanetetracarboxylic dianhydride, 1,2,3,4-pentanetetracarboxylic dianhydride, 3,3′,4,4′-benzophenonetetracarboxylic dianhydride, cyclopentanetetracarboxylic dianhydride , 2,3,6,7-naphthalenetetracarboxylic dianhydride, 1,2,5,6-naphthalenetetracarboxylic dianhydride, ethylene glycol bistrimellitate dianhydride, 2,2′,3,3 '-diphenyltetracarboxylic dianhydride, thiophene-2,3,4,5-tetracarboxylic dianhydride, ethylenetetracarboxylic dianhydride, 4,4'
- a carboxylic acid monoanhydride and a carboxylic acid polyanhydride can be used alone or in combination. can also
- the polyester resin (A) preferably has a THF-insoluble content of less than 10% by mass when heat-treated at 120° C. for 15 minutes. It is more preferably less than 5% by mass, still more preferably less than 1% by mass, and may even be 0% by mass.
- THF-insoluble matter is less than the above value under relatively low temperature heating conditions of about 120° C., it is possible to suppress the generation of aggregates during dissolution in a solvent or formation of an aqueous dispersion.
- the tetrahydrofuran-insoluble content is less than 10% by mass when heat-treated at 120 ° C.
- THF insoluble content (% by mass) [ ⁇ (Y) - copper foil mass ⁇ / ⁇ (X) - copper foil mass ⁇ ] x 100
- the adhesive resin composition of the present invention preferably further contains a catalyst (B).
- a catalyst (B) By containing the catalyst (B), the self-crosslinking property of the polyester resin (A) during heat treatment can be promoted, the storage elastic modulus E′ can be increased, and the curability can be improved.
- the catalyst examples include acid catalysts such as sulfuric acid, p-toluenesulfonic acid, dodecylbenzenesulfonic acid, naphthalenesulfonic acid, dinonylnaphthalenesulfonic acid, dinonylnaphthalenedisulfonic acid, camphorsulfonic acid, and phosphoric acid, and amine blocks ( partially neutralized with amine), organic tin compounds such as dibutyltin dilaurate, titanium compounds such as titanium tetrabutoxide, zinc compounds such as zinc acetate, hafnium compounds such as hafnium chloride/THF complex, scandium triflate, etc. Examples include rare earth compounds, and one or more of these can be used in combination. Of these, dodecylbenzenesulfonic acid and neutralized products thereof are preferred from the viewpoint of compatibility with the polyester resin (A) and sanitation.
- acid catalysts such as sulfuric acid, p-toluenesulf
- the catalyst (B) may be contained in the polyester resin (A) or may be added later. From the viewpoint of avoiding gelation during polymerization of the polyester resin (A), it is preferable to add the catalyst (B) after the production of the polyester resin (A).
- a radical polymerization inhibitor (C) may be added to the adhesive resin composition of the present invention.
- the radical polymerization inhibitor (C) is mainly used to prevent gelation due to cleavage of unsaturated bonds when the polyester resin (A) is polymerized, and it enhances the storage stability of the polyester resin (A). Therefore, it may be added after polymerization.
- Examples of the radical polymerization inhibitor (C) include known antioxidants such as phenol antioxidants, phosphorus antioxidants, amine antioxidants, sulfur antioxidants, nitro compound antioxidants, and inorganic compound antioxidants. can be exemplified.
- Phenolic antioxidants include 2,5-di-t-butylhydroquinone, 4,4′-butyldenbis(3-methyl-6-t-butylphenol), 1,1,3-tris(2-methyl-4 -hydroxy-5-t-butylphenyl)butane, 1,3,5-tris-methyl-2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)benzene, tris(3 ,5-di-t-butyl-4-hydroxyphenyl)isocyanurate and derivatives thereof.
- Phosphorus antioxidants include tri(nonylphenyl)phosphite, triphenylphosphite, diphenylisodecylphosphite, trioctadecylphosphite, tridecylphosphite, diphenyldecylphosphite, 4,4′-butylidene-bis (3-methyl-6-t-butylphenyl ditridecylphosphite), distearyl-pentaerythritol diphosphite, trilauryltrithiophosphite, and derivatives thereof.
- Amine antioxidants include phenyl-beta-naphthylamine, phenothiazine, N,N'-diphenyl-p-phenylenediamine, N,N'-di-betanaphthyl-p-phenylenediamine, N-cyclohexyl-N'- Phenyl-p-phenylenediamine, aldol-alpha-naphthylamine, 2,2,4-trimethyl-1,2-dihydroquinoline polymers, and derivatives thereof.
- sulfur-based antioxidants include thiobis(N-phenyl-beta-naphthylamine, 2-mercaptobenchiazole, 2-mercaptobenzimidazole, tetramethylthiuram disulfide, nickel isopropylxanthate, and derivatives thereof.
- Nitro compound antioxidants include 1,3,5-trinitrobenzene, p-nitrosodiphenylamine, p-nitrosodimethylaniline, 1-chloro-3-nitrobenzene, o-dinitrobenzene, m-dinitrobenzene, p-dinitrobenzene, Nitrobenzene, p-nitrobenzoic acid, nitrobenzene, 2-nitro-5-cyanothiophene, etc., or derivatives thereof.
- inorganic compound antioxidants include FeCl 3 , Fe(CN) 3 , CuCl 2 , CoCl 3 , Co(ClO 4 ) 3 , Co(NO 3 ) 3 , Co 2 (SO 4 ) 3 and the like.
- radical polymerization inhibitor (C) among the above antioxidants, phenol antioxidants and amine antioxidants are preferable from the viewpoint of thermal stability, and have a melting point of 120° C. or higher and a molecular weight of 200 or higher. is more preferable, and those having a melting point of 170° C. or higher are even more preferable.
- Specific examples include phenothiazine and 4,4'-butyldenbis(3-methyl-6-t-butylphenol).
- the adhesive resin composition of the present invention may further contain other components according to the required properties.
- specific examples of such components include flame retardants, tackifiers, silane coupling agents, titanium oxide, known inorganic fillers such as silica, phosphoric acid and its esters, surface smoothing agents, antifoaming agents, and dispersing agents.
- known additives such as agents and lubricants can be blended.
- fillers such as silica are very preferable because their addition improves solder heat resistance.
- Hydrophobic silica and hydrophilic silica are generally known as silica, but here, hydrophobic silica treated with dimethyldichlorosilane, hexamethyldisilazane, octylsilane, etc.
- the blending amount is preferably 0.05 to 30 parts by mass per 100 parts by mass of the polyester resin (A).
- the effect of improving the soldering heat resistance can be exhibited by making it equal to or higher than the lower limit.
- the content is equal to or less than the above upper limit, poor dispersion of silica does not occur, and the solution viscosity is good and the workability is good.
- the adhesiveness is not lowered.
- the adhesive resin composition of the present invention can be used after being dissolved in a known organic solvent.
- organic solvents include toluene, xylene, ethyl acetate, butyl acetate, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, isophorone, methyl cellosolve, butyl cellosolve, ethylene glycol monoethyl ether acetate, diethylene glycol monoethyl ether acetate, ethylene glycol monoacetate, methanol.
- the adhesive resin composition of the present invention can be blended with other resins for the purpose of modifying properties such as imparting flexibility and adhesion to the adhesive layer.
- other resins include amorphous polyesters, crystalline polyesters, ethylene-polymerizable unsaturated carboxylic acid copolymers, and ethylene-polymerizable carboxylic acid copolymer ionomers, and are selected from these. Blending at least one or more resins may sometimes impart flexibility and/or adhesion to the coating film.
- the adhesive resin composition of the present invention can be applied to a substrate and then dried to form an adhesive layer.
- the substrate is not particularly limited, but examples include resin substrates such as film-like resins, metal substrates such as metal plates and metal foils, and papers.
- resin substrates examples include polyester resins, polyamide resins, polyimide resins, polyamideimide resins, liquid crystal polymers, polyphenylene sulfides, syndiotactic polystyrene, polyolefin resins, fluorine resins, and the like.
- a film-like resin hereinafter also referred to as a base film layer is preferable.
- any conventionally known conductive material that can be used for circuit boards can be used as the metal base material.
- materials include various metals such as SUS, copper, aluminum, iron, steel, zinc, and nickel, and their alloys, plated products, and metals treated with other metals such as zinc and chromium compounds.
- Metal foil is preferred, and copper foil is more preferred.
- the thickness of the metal foil is not particularly limited, it is preferably 1 ⁇ m or more, more preferably 3 ⁇ m or more, and still more preferably 10 ⁇ m or more. Also, it is preferably 50 ⁇ m or less, more preferably 30 ⁇ m or less, and even more preferably 20 ⁇ m or less. If the thickness is too thin, it may be difficult to obtain sufficient electrical performance of the circuit.
- Metal foils are usually provided in roll form.
- the form of the metal foil used in manufacturing the printed wiring board of the present invention is not particularly limited.
- the length is not particularly limited.
- the width is not particularly limited, but it is preferably about 250 to 500 cm.
- Examples of papers include high-quality paper, kraft paper, roll paper, and glassine paper. Moreover, glass epoxy etc. can be illustrated as a composite material.
- the substrates include polyester resins, polyamide resins, polyimide resins, polyamideimide resins, liquid crystal polymers, polyphenylene sulfides, syndiotactic polystyrene, polyolefin resins, Fluorine-based resin, SUS steel plate, copper foil, aluminum foil, or glass epoxy are preferred.
- the laminate of the present invention is obtained by laminating an adhesive resin composition on a substrate (two-layer laminate of substrate/adhesive layer), or further laminating a substrate (substrate/adhesive layer / three-layer laminate of substrate).
- the laminate of the present invention can be obtained by applying the adhesive resin composition of the present invention to various substrates, drying it, and further laminating another substrate according to a conventional method.
- the adhesive sheet of the present invention is obtained by laminating the above laminate and a release substrate via an adhesive resin composition.
- Specific configurations include laminate/adhesive layer/release substrate, or release substrate/adhesive layer/laminate/adhesive layer/release substrate.
- the release base material By laminating the release base material, it functions as a protective layer for the base material.
- the release base material can be released from the adhesive sheet, and the adhesive layer can be transferred to another base material.
- the adhesive sheet of the present invention can be obtained by applying the adhesive resin composition of the present invention to various laminates and drying them according to a conventional method.
- a release base material is applied to the adhesive layer after drying, it is possible to wind up the product without set-off to the base material, resulting in excellent workability and preservability due to the protection of the adhesive layer. excellent and easy to use.
- the adhesive layer itself is applied to a release base material and dried, and if necessary, another release base material is applied, the adhesive layer itself can be transferred to another base material.
- the release substrate is not particularly limited, but for example, a coated layer of filler such as clay, polyethylene, polypropylene, etc. is applied to both sides of paper such as woodfree paper, kraft paper, roll paper, and glassine paper. and a silicone type, fluorine type or alkyd type release agent is applied on each coating layer.
- a coated layer of filler such as clay, polyethylene, polypropylene, etc.
- paper such as woodfree paper, kraft paper, roll paper, and glassine paper.
- a silicone type, fluorine type or alkyd type release agent is applied on each coating layer.
- Other examples include various olefin films such as polyethylene, polypropylene, ethylene- ⁇ -olefin copolymer and propylene- ⁇ -olefin copolymer alone, and films such as polyethylene terephthalate coated with the release agent.
- both sides of high-quality paper are filled with polypropylene and an alkyd-based release agent is used on top of it.
- an alkyd release agent on polyethylene terephthalate.
- the method of coating the substrate with the adhesive resin composition in the present invention is not particularly limited, but includes a comma coater, a reverse roll coater, and the like.
- an adhesive layer can be provided directly or by a transfer method on the rolled copper foil or polyimide film, which are the constituent materials of the printed wiring board.
- the curing conditions for the adhesive resin composition are usually about 150 to 260° C. for about 1 minute to 3 hours, and further about 180 to 210° C. for about 30 minutes to 2 hours. preferable.
- the thickness of the adhesive layer after drying may be changed as required, but is preferably in the range of 5 to 200 ⁇ m. If the adhesive film thickness is less than 5 ⁇ m, the adhesive strength is insufficient.
- the drying conditions are not particularly limited, but the residual solvent rate after drying is preferably 1% by mass or less. If it exceeds 1% by mass, there is a problem that the residual solvent foams when the printed wiring board is pressed, resulting in blisters.
- the printed wiring board of the present invention includes, as constituent elements, a laminate formed from a metal foil forming a conductor circuit and a resin base material.
- a printed wiring board is manufactured, for example, by a conventionally known method such as a subtractive method using a metal-clad laminate. If necessary, so-called flexible circuit boards (FPC), flat cables, tape automated bonding ( It is a general term for circuit boards for TAB).
- FPC flexible circuit boards
- TAB tape automated bonding
- the printed wiring board of the present invention can have any laminated structure that can be employed as a printed wiring board.
- it can be a printed wiring board composed of four layers: a base film layer, a metal foil layer, an adhesive layer, and a cover film layer.
- a printed wiring board can be made up of five layers: a base film layer, an adhesive layer, a metal foil layer, an adhesive layer, and a cover film layer.
- the adhesive resin composition of the present invention can be suitably used for each adhesive layer of printed wiring boards.
- the adhesive resin composition of the present invention when used as an adhesive, it can be used not only with conventional polyimide, polyester film, and copper foil constituting printed wiring boards, but also with low-polarity resin substrates such as LCP (liquid crystal polymer) and high It has adhesive properties and excellent solder heat resistance. Therefore, it is suitable as an adhesive composition used for coverlay films, laminates, resin-coated copper foils and bonding sheets.
- any resin film conventionally used as a base material for printed wiring boards can be used as the base film for the printed wiring board of the present invention.
- resins for the base film include polyester resins, polyamide resins, polyimide resins, polyamideimide resins, liquid crystal polymers, polyphenylene sulfides, syndiotactic polystyrene, polyolefin resins, fluorine resins, and the like.
- any insulating film conventionally known as an insulating film for printed wiring boards can be used as the cover film.
- films made from various polymers such as polyimide, polyester, polyphenylene sulfide, polyethersulfone, polyetheretherketone, aramid, polycarbonate, polyarylate, and polyamideimide resins can be used. More preferably, it is a polyimide film.
- the printed wiring board of the present invention can be manufactured using any conventionally known process except for using the materials for each layer described above.
- a semi-finished product in which an adhesive layer is laminated on a cover film layer (hereinafter referred to as "cover film-side semi-finished product”) is manufactured.
- a semi-finished product in which a desired circuit pattern is formed by laminating a metal foil layer on a base film layer (hereinafter referred to as a "two-layer semi-finished product on the base film side"), or a semi-finished product in which an adhesive layer is laminated on a base film layer.
- a semi-finished product having a desired circuit pattern formed by laminating a metal foil layer thereon (hereinafter referred to as “base film side 3-layer semi-finished product”) (hereinafter referred to as “base film side 2-layer semi-finished product”). Together with the base film side three-layer semi-finished product, it is referred to as the “base film side semi-finished product”).
- base film side semi-finished product By laminating the semi-finished product on the cover film side and the semi-finished product on the base film side thus obtained, a printed wiring board having four or five layers can be obtained.
- the semi-finished product on the substrate film side includes, for example, (A) a step of applying a solution of a resin that will be the substrate film to the metal foil and initially drying the coating film, and (B) the metal foil obtained in (A) and It is obtained by a production method including a process of heat-treating and drying the laminate with the initially dried coating film (hereinafter referred to as "heat-treatment/solvent removal process").
- a conventionally known method can be used to form a circuit in the metal foil layer.
- An additive method may be used, or a subtractive method may be used.
- a subtractive method is preferred.
- the semi-finished product on the base film side thus obtained may be used as it is for lamination with the semi-finished product on the cover film side. may be used.
- the semi-finished product on the cover film side is manufactured, for example, by applying an adhesive to the cover film. If desired, a cross-linking reaction in the applied adhesive can be performed. In a preferred embodiment, the adhesive layer is semi-cured.
- the semi-finished product on the cover film side thus obtained may be used as it is for bonding to the semi-finished product on the base film side. may be used for
- the semi-finished product on the base film side and the semi-finished product on the cover film side are each stored, for example, in the form of a roll, and then laminated together to manufacture a printed wiring board.
- Any method can be used as the bonding method, and for example, the bonding can be performed using a press or a roll. Also, both can be bonded together while being heated by a method such as using a hot press or a hot roll device.
- the semi-finished product on the reinforcing material side for example, in the case of a soft and windable reinforcing material such as a polyimide film, it is preferable to manufacture it by applying an adhesive to the reinforcing material.
- an adhesive to the reinforcing material.
- the adhesive applied in advance to the release base material can be transferred and applied. It is preferably manufactured. Also, if necessary, a cross-linking reaction in the applied adhesive can be carried out.
- the adhesive layer is semi-cured.
- the semi-finished product on the reinforcing material side thus obtained may be used as it is for bonding to the back surface of the printed wiring board, or it may be used for bonding to the semi-finished product on the base film side after being stored after being bonded with a release film. You may
- the semi-finished product on the base film side, the semi-finished product on the cover film side, and the semi-finished product on the reinforcing material side are all printed wiring board laminates in the present invention.
- the adhesive resin composition or adhesive sheet of the present invention can be suitably used for each adhesive layer of laminated films for decorating three-dimensional molded products, in addition to printed wiring boards.
- the laminated film for decorating a three-dimensional molded article of the present invention is a film used in decorative molding of a three-dimensional molded article. That is, a designable film is adhered to various molded articles to impart designability to the molded articles or to provide a surface protection function. At that time, it is brought into close contact by deforming it along the surface of the three-dimensional shape.
- the adhesive resin composition of the present invention when used as an adhesive, it exhibits high adhesion to resin substrates such as conventional soft vinyl chloride films, polycarbonate films, polyester films, and ABS, which constitute laminated films for decorating three-dimensional molded articles. It also has excellent seat life. Therefore, automotive exterior parts such as side underskirts, side garnishes, and door mirrors, automotive interior parts such as instrument panels and door switch panels, and three-dimensional molding decoration for housings of home appliances such as refrigerators, mobile phones, and lighting fixtures. It is suitable as an adhesive resin composition for use in laminated films for industrial applications.
- resin substrates such as conventional soft vinyl chloride films, polycarbonate films, polyester films, and ABS, which constitute laminated films for decorating three-dimensional molded articles. It also has excellent seat life. Therefore, automotive exterior parts such as side underskirts, side garnishes, and door mirrors, automotive interior parts such as instrument panels and door switch panels, and three-dimensional molding decoration for housings of home appliances such as refrigerators, mobile phones, and lighting fixtures. It is suitable as
- the adhesive resin composition of the present invention and an adhesive sheet using the same can be used as each adhesive layer of a film for laminating metal cans or as a film for laminating metal cans.
- the adhesive resin composition of the present invention when used as an adhesive, it exhibits high adhesion to metal substrates such as conventional polyester films that constitute films for laminating metal cans, tinplates that constitute metal cans, tin-free steel, and aluminum. and excellent pot life. Therefore, it is suitable as each adhesive layer of the film for laminating metal cans or as an adhesive sheet used for the film for laminating metal cans.
- the adhesive resin composition of the present invention and the laminate using the same can be used as a packaging material.
- plastic films such as polyethylene terephthalate, polyethylene naphthalate, vinyl chloride resin, ABS resin, acrylic resin, and polycarbonate resin, which are generally used for packaging materials, and aluminum It has high adhesion to gas barrier substrates such as foil, and has excellent pot life. Therefore, it is suitable for each adhesive layer of a packaging material or as a laminate used for packaging materials.
- Tg glass transition temperature
- THF-insoluble content [ ⁇ (Y) - copper foil mass ⁇ / ⁇ (X) - copper foil mass ⁇ ] x 100
- TBT tetra-n-butyl titanate
- polyester resin (synthesis example (a)).
- the obtained polyester resin had a reduced viscosity of 0.30 dl/g, a glass transition temperature (Tg) of 20° C., and an acid value of 300 eq/ton.
- Synthesis examples (b) to (p) Polyester resins (synthesis examples (b) to (p)) having the resin composition and resin properties shown in Table 1 were produced by the direct polymerization method in the same manner as in synthesis example (a), except that the charging composition was changed. bottom.
- THF-insoluble content [ ⁇ (Y) - copper foil mass ⁇ / ⁇ (X) - copper foil mass ⁇ ] x 100
- the bonding was performed by pressing the rolled copper foil so that the glossy surface of the rolled copper foil was in contact with the adhesive layer, and pressing for 30 seconds under a pressure of 40 kgf/cm 2 at 160°C. Then, it was cured by heat treatment at 200° C. for 1 hour to obtain a sample for peel strength evaluation.
- the peel strength was measured by pulling the film at 25°C and performing a 90° peel test at a tensile speed of 50 mm/min. This test shows the bond strength at room temperature.
- the adhesive layer (B stage product) thus obtained was coated with a 25 ⁇ m thick polyester film (E5107, manufactured by Toyobo Co., Ltd.) (PET) and a 0.125 mm thick polycarbonate film (manufactured by Teijin Limited, Pan A light sheet) (PC) or a 30 ⁇ m-thick aluminum vapor-deposited polyester film (manufactured by Toyobo Co., Ltd.) (Al) was laminated.
- the lamination was carried out so that the untreated surface of the polycarbonate film, the corona-treated surface of the polyester film, or the aluminum-deposited surface of the aluminum-deposited polyester film was in contact with the adhesive layer, and the adhesive layer was applied at 120° C.
- Pot-life property refers to the stability of the varnish immediately after blending the adhesive resin composition or after a certain period of time has elapsed after blending.
- a good pot life indicates that the varnish does not increase in viscosity and can be stored for a long period of time.
- a gelation phenomenon occurs, making it difficult to apply to a base material and impossibility of long-term storage.
- the adhesive resin composition prepared above was subjected to solution viscosity measurement at 25° C. using a Brookfield viscometer to determine the initial solution viscosity ⁇ B0. Thereafter, the adhesive resin composition was stored at 40°C for 7 days, and the solution viscosity ⁇ B was measured at 25°C.
- solution viscosity ratio solution viscosity ⁇ B/solution viscosity ⁇ B0 ⁇ Evaluation Criteria> ⁇ : solution viscosity ratio is 0.5 or more and less than 1.5 ⁇ : solution viscosity ratio is 1.5 or more and less than 2.0 ⁇ : solution viscosity ratio is 2.0 or more and less than 3.0 ⁇ : solution viscosity ratio is 3.0 0 or more, or viscosity measurement not possible due to pudding
- Adhesive resin composition 100 parts by mass (solid content) of polyester resin (A) was dissolved in methyl ethyl ketone so as to obtain a viscosity suitable for coating.
- Adhesive resin compositions (solid content: about 20% by mass) were obtained according to the formulations shown in Tables 2, 3 and 4.
- the obtained adhesive resin composition was evaluated for THF-insoluble matter, adhesion to polyimide film and copper foil substrates, solder heat resistance, and pot life. Evaluation results are shown in Tables 2 and 3.
- Table 4 shows the evaluation results of adhesion to polyester and polycarbonate substrates, aluminum deposition substrates, and pot life, which are suitably used as substrates for laminated films for decorating three-dimensional molded products and packaging materials. showed that.
- the adhesive resin composition of the present invention is excellent in all of its adhesiveness (peel strength), solder heat resistance and pot life.
- Comparative Examples 1 to 5 had less THF-insoluble matter at 200° C., and thus were inferior in adhesiveness (peel strength) and soldering heat resistance.
- Comparative Examples 6 and 7 had poor pot life due to the addition of a curing agent.
- the product of the present invention is an adhesive resin composition excellent in adhesiveness, solder heat resistance and pot life, an adhesive sheet, and a laminate containing the same, and is used as an adhesive for circuit boards such as FPC. Especially useful. It also has adhesiveness to polyester substrates, polycarbonate substrates, and aluminum deposition substrates, and can be applied as adhesives for laminated films for decorating three-dimensional molded articles and packaging materials.
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Abstract
Description
[1]ポリエステル樹脂(A)を含み、次の(i)~(ii)の要件を満たすことを特徴とする接着剤樹脂組成物。
(i)接着剤樹脂組成物が硬化剤を実質的に含有しない。
(ii)200℃で1時間加熱処理した際の接着剤樹脂組成物のテトラヒドロフラン不溶分が10質量%以上である。
[2]ポリエステル樹脂(A)の酸価が100eq/ton以上である、[1]に記載の接着剤樹脂組成物。
[3]ポリエステル樹脂(A)が分岐構造を有する、[1]または[2]に記載の接着剤樹脂組成物。
[4]ポリエステル樹脂(A)を構成するポリオール成分として、1級水酸基を2個有しかつ脂環構造を有さないジオール(a)を含み、さらに、脂環構造を有するジオール(b)および1個の1級水酸基と1個の2級水酸基を有しかつ脂環構造を有さないジオール(c)のいずれかまたは両方を含む、[1]または2に記載の接着剤樹脂組成物。
[5]ポリエステル樹脂(A)を構成するポリカルボン酸成分として、ベンゼン骨格を有するポリカルボン酸を含み、さらに脂肪族ポリカルボン酸、脂環族ポリカルボン酸、およびナフタレン骨格を有するポリカルボン酸からなる群より選ばれる少なくとも一種を含む、[1]または[2]に記載の接着剤樹脂組成物。
[6]ポリエステル樹脂(A)が不飽和ジカルボン酸(d)を構成単位として含む、[1]または[2]に記載の接着剤樹脂組成物。
[7]接着剤樹脂組成物がさらに触媒(B)を1種以上含む、[1]または[2]に記載の接着剤樹脂組成物。
[8]ポリエステル樹脂(A)を120℃で15分間加熱処理した際のポリエステル樹脂(A)のテトラヒドロフラン不溶分が10質量%未満である、[1]または[2]に記載の接着剤樹脂組成物。
[9][1]または[2]に記載の接着剤樹脂組成物からなる接着剤層を有する積層体。
[10][1]または[2]に記載の接着剤樹脂組成物からなる接着剤層を有する接着シート。
[11][9]に記載の積層体を構成要素として含むプリント配線板。
[12][9]に記載の積層体を構成要素として含む包装材。
[13][10]に記載の接着シートを構成要素として含む3次元成形品加飾用積層フィルム。
[14][10]に記載の接着シートを構成要素として含む金属缶ラミネート用フィルム。
(i)接着剤樹脂組成物が硬化剤を実質的に含有しない。
(ii)200℃で1時間加熱処理した際の接着剤樹脂組成物のテトラヒドロフラン不溶分が10質量%以上である。
要件(i)は、本発明の接着剤樹脂組成物が実質的に硬化剤を含有しないことを規定する。この「実質的に硬化剤を含有しない」とは、「ポリエステル樹脂(A)100質量部(固形分換算)に対し、硬化剤含有量が1質量部未満(固形分換算)であること」を意味する。本発明の接着剤樹脂組成物は、加熱により自己架橋するため、硬化剤を実質的に含有していなくても硬化することができる。
ここで硬化剤とは、本発明のポリエステル樹脂(A)と反応し架橋構造を形成する既知の硬化剤を指し、架橋構造の形態は、例えば、ポリエステル樹脂中の不飽和二重結合をラジカル付加反応、カチオン付加反応、またはアニオン付加反応等によって反応させ、分子間炭素-炭素結合を生成させる反応や、ポリエステル樹脂中の多価カルボン酸基、多価アルコール基との縮合反応、重付加反応、またはエステル交換反応等による分子間結合の形成等が挙げられる。硬化剤としては、例えば、フェノール樹脂、アミノ樹脂、イソシアネート化合物、エポキシ化合物、またはβ-ヒドロキシルアミド化合物、不飽和結合含有樹脂などを挙げることができる。
要件(ii)は、本発明の接着剤樹脂組成物が、200℃で1時間加熱処理した際のテトラヒドロフラン不溶分が10質量%以上であることを規定する。上述のように、本発明の接着剤樹脂組成物は、加熱により自己架橋する。加熱処理時のテトラヒドロフラン不溶分の量は、この加熱による自己架橋性の度合いの指標である。テトラヒドロフラン(THF)不溶分が10質量%以上であることで、硬化性が十分であり、ハンダ耐熱性と接着性のバランスに優れた接着剤樹脂組成物およびその接着剤層が得られる。ここで、接着剤層とは、本発明の接着剤樹脂組成物を基材に塗布し、乾燥させた後の接着剤樹脂組成物の層をいう。THF不溶分は好ましくは30質量%以上であり、より好ましくは50質量%以上であり、さらに好ましくは70質量%である。10質量%未満では硬化性が不十分となり、接着性やハンダ耐熱性が低下する恐れがある。なお、加熱処理時のテトラヒドロフラン不溶分の量(加熱による自己架橋性の度合い)は、従来公知の方法によって制御可能であるが、例えばポリエステル樹脂(A)の各構成成分の種類や配合割合を調節したり、触媒を配合したりすることによって制御することができる。
ここで、「200℃で1時間加熱処理した際のテトラヒドロフラン不溶分が10質量%以上である」とは、銅箔上に接着剤樹脂組成物を乾燥後の厚みが10μmとなるよう塗布し、200℃で1時間熱を加え、縦10cm、横2.5cmの大きさにしたサンプルのTHF浸漬前質量を(X)とし、60mlのTHFに25℃、1時間浸した後、100℃、10分乾燥させた後のサンプルの質量をTHF浸漬後質量(Y)とし、下記式で求めたときのTHF不溶分が10質量%以上であることを指す。
THF不溶分(質量%)=〔{(Y)-銅箔質量}/{(X)-銅箔質量}〕×100
次に、本発明に用いられるポリエステル樹脂(A)について説明する。
ポリエステル樹脂(A)は、ポリカルボン酸成分とポリオール成分から構成されるものである。
ここで、「120℃で15分間加熱処理した際のテトラヒドロフラン不溶分が10質量%未満である」とは、銅箔上にポリエステル樹脂を乾燥後の厚みが10μmとなるよう塗布し、120℃で15分間熱を加え、縦10cm、横2.5cmの大きさにしたサンプルのTHF浸漬前質量を(X)とし、60mlのTHFに25℃、1時間浸した後、100℃、10分乾燥させた後のサンプルの質量をTHF浸漬後質量(Y)とし、下記式で求めたときのTHF不溶分が10質量%未満であることを指す。
THF不溶分(質量%)=〔{(Y)-銅箔質量}/{(X)-銅箔質量}〕×100
本発明の接着剤樹脂組成物には、さらに触媒(B)を含有することが好ましい。触媒(B)を含有することで、ポリエステル樹脂(A)の加熱処理時の自己架橋性を促進し、貯蔵弾性率E’が上昇し、硬化性を向上させることができる。触媒としては、例えば硫酸、p-トルエンスルホン酸、ドデシルベンゼンスルホン酸、ナフタレンスルホン酸、ジノニルナフタレンスルホン酸、ジノニルナフタレンジスルホン酸、樟脳スルホン酸、リン酸等の酸触媒及びこれらをアミンブロック(アミンを添加し一部中和)したもの、ジブチル錫ジラウリレート等の有機スズ化合物、チタンテトラブトキシド等のチタン化合物、酢酸亜鉛などの亜鉛化合物、塩化ハフニウム・THF錯体などのハフニウム化合物、スカンジウムトリフラートなどの希土類化合物が挙げられ、これらの中から1種、又は2種以上を併用することができる。中でもポリエステル樹脂(A)との相容性、衛生性の面からドデシルベンゼンスルホン酸、及びこの中和物が好ましい。
(1)樹脂組成の測定
ポリエステル樹脂(A)の試料を、重クロロホルムに溶解し、VARIAN社製 核磁気共鳴(NMR)装置400-MRを用いて、1H-NMR分析を行った。その積分値比より、モル比を求めた。
ポリエステル樹脂(A)の試料0.1gをフェノール/テトラクロロエタン(質量比6/4)の混合溶媒25ccに溶解し、30℃で測定した。
示差走査型熱量計(SII社、DSC-200)により測定した。ポリエステル樹脂(A)の試料5mgをアルミニウム製の抑え蓋型容器に入れて密封し、液体窒素を用いて-50℃まで冷却し、次いで150℃まで20℃/分にて昇温させた。この過程にて得られる吸熱曲線において、吸熱ピークが出る前のベースラインと、吸熱ピークに向かう接線との交点の温度をもって、ガラス転移温度(Tg、単位:℃)とした。
ポリエステル樹脂(A)の試料0.2gを20mlのクロロホルムに溶解し、0.01Nの水酸化カリウムエタノール溶液で滴定し、ポリエステル樹脂106gあたりの当量(eq/ton)を求めた。指示薬にはフェノールフタレインを用いた。
120℃で15分間加熱処理した際のTHF不溶分は、ポリエステル樹脂(A)のメチルエチルケトン溶液(固形分20質量%)を調製し、銅箔上にポリエステル樹脂(A)の乾燥後の厚みが10μmとなるよう塗布し、120℃で15分間熱を加え、縦10cm、横2.5cmの大きさにしたサンプルのTHF浸漬前質量を(X)とし、60mlのTHFに25℃、1時間浸した後、100℃、10分乾燥させた後のサンプルの質量をTHF浸漬後質量(Y)とし、下記式により求めた。
THF不溶分(質量%)=〔{(Y)-銅箔質量}/{(X)-銅箔質量}〕×100
テレフタル酸ジメチル580質量部、無水トリメリット酸10質量部、フマル酸60質量部、エチレングリコール310質量部、1,2-プロピレングリコール380質量部、触媒としてテトラ-n-ブチルチタネート(以下、TBTと略記する場合がある)0.5質量部(全ポリカルボン酸成分に対して0.03モル%)を3L四つ口フラスコに仕込み、3時間かけて230℃まで徐々に昇温しながら、エステル交換反応を行った。次いで、アジピン酸220質量部を投入し、1時間かけて240℃まで徐々に昇温しながら、エステル化反応を行った。反応後、系内を徐々に減圧していき、1時間かけて10mmHgまで減圧重合を行うとともに温度を245℃まで昇温し、さらに1mmHg以下の真空下で50分間後期重合を行なった。目標分子量に達した後、これを窒素雰囲気下で210℃に冷却した。次いで無水トリメリット酸20質量部、エチレングリコールビストリメリテート二無水物21質量部を投入し、窒素雰囲気下、200~230℃、30分攪拌を継続した。これを取り出し、ポリエステル樹脂(合成例(a))を得た。得られたポリエステル樹脂の還元粘度は0.30dl/g、ガラス転移温度(Tg)は20℃、酸価は300eq/tonであった。
合成例(a)と同様に直接重合法にて、但し仕込み組成を変更して、樹脂組成および樹脂特性が表1に示されるようなポリエステル樹脂(合成例(b)~(p))を製造した。
(1)THF不溶分の測定
200℃で1時間加熱処理した際のTHF不溶分は、銅箔上に接着剤樹脂組成物を乾燥後の厚みが10μmとなるよう塗布し、200℃で1時間熱を加え、縦10cm、横2.5cmの大きさにしたサンプルのTHF浸漬前質量を(X)とし、60mlのTHFに25℃、1時間浸した後、100℃、10分乾燥させた後のサンプルの質量をTHF浸漬後質量(Y)とし、下記式により求めた。
THF不溶分(質量%)=〔{(Y)-銅箔質量}/{(X)-銅箔質量}〕×100
後述する接着剤樹脂組成物を厚さ12.5μmのポリイミドフィルム(株式会社カネカ製、アピカル(登録商標))に、乾燥後の厚みが25μmとなるように塗布し、130℃で10分乾燥した。この様にして得られた接着性フィルム(Bステージ品)を厚さ12.5μmのポリイミドフィルム(PI)または18μmの圧延銅箔(JX金属株式会社製、BHYシリーズ)(Cu)と貼り合わせた。貼り合わせは、圧延銅箔の光沢面が接着剤層と接する様にして、160℃で40kgf/cm2の加圧下に30秒間プレスし、接着した。次いで200℃で1時間加熱処理して硬化させて、ピール強度評価用サンプルを得た。剥離強度は、25℃において、フィルム引き、引張速度50mm/minで90°剥離試験を行ない、剥離強度を測定した。この試験は常温での接着強度を示すものである。
<評価基準>
◎:0.8N/mm以上
○:0.6N/mm以上8.0N/mm未満
△:0.4N/mm以上0.6N/mm未満
×:0.4N/mm未満
後述する接着剤樹脂組成物を厚さ12.5μmのポリイミドフィルム(株式会社カネカ製、アピカル(登録商標))に、乾燥後の厚みが25μmとなるように塗布し、200℃で1時間乾燥した。この様にして得られた接着剤層(Bステージ品)に、厚さ25μmのポリエステルフィルム(東洋紡株式会社製、E5107)(PET)、厚さ0.125mmのポリカーボネートフィルム(帝人株式会社製、パンライトシート)(PC)、または厚さ30μmのアルミ蒸着ポリエステルフィルム(東洋紡株式会社製)(Al)を貼り合わせた。貼り合わせは、ポリカーボネートフィルムの未処理面、ポリエステルフィルムのコロナ処理面、またはアルミ蒸着ポリエステルフィルムのアルミ蒸着面が接着剤層と接する様にして、120℃で40kgf/cm2の加圧下に30分間プレス、接着し、ピール強度評価用サンプルを得た。剥離強度は、25℃において、ポリイミドフィルム引き、引張速度50mm/minで90°剥離試験を行ない、剥離強度を測定した。この試験は常温での接着強度を示すものである。
<評価基準>
◎:0.8N/mm以上
○:0.6N/mm以上8.0N/mm未満
△:0.4N/mm以上0.6N/mm未満
×:0.4N/mm未満
上記(2)ピール強度または(3)ピール強度と同じ方法でサンプルを作製し、2.0cm×2.0cmのサンプル片を23℃で2日間エージング処理を行い、280℃で溶融したハンダ浴に10秒フロートし、膨れなどの外観変化の有無を確認した。
<評価基準>
◎:膨れ無し
○:一部膨れ有
△:多くの膨れ有
×:膨れ、かつ変色有
ポットライフ性とは、接着剤樹脂組成物の配合直後または配合後一定時間経過後の該ワニスの安定性を指す。ポットライフ性が良好な場合は、ワニスの粘度上昇が少なく長期間保存が可能であることを指し、ポットライフ性が不良な場合は、ワニスの粘度が上昇(増粘)し、ひどい場合にはゲル化現象を起こし、基材への塗布が困難となり、長期間保存が不可能であることを指す。
上記で調製した接着剤樹脂組成物を、ブルックフィールド型粘度計を用いて25℃の溶液粘度測定し、初期の溶液粘度ηB0を求めた。その後、接着剤樹脂組成物を40℃下7日間貯蔵し、25℃下で溶液粘度ηBを測定した。溶液粘度比を下記式にて算出を行い、以下の通りに評価した。
溶液粘度比=溶液粘度ηB/溶液粘度ηB0
<評価基準>
◎:溶液粘度比が0.5以上1.5未満
○:溶液粘度比が1.5以上2.0未満
△:溶液粘度比が2.0以上3.0未満
×:溶液粘度比が3.0以上、またはプリン化により粘度測定不可
ポリエステル樹脂(A)100質量部(固形分)をメチルエチルケトンで塗布に適した粘度になるように溶解した。表2、表3および表4の配合に従い、接着剤樹脂組成物(固形分約20質量%)を得た。
Claims (14)
- ポリエステル樹脂(A)を含み、次の(i)~(ii)の要件を満たすことを特徴とする接着剤樹脂組成物。
(i)接着剤樹脂組成物が硬化剤を実質的に含有しない。
(ii)200℃で1時間加熱処理した際の接着剤樹脂組成物のテトラヒドロフラン不溶分が10質量%以上である。 - ポリエステル樹脂(A)の酸価が100eq/ton以上である、請求項1に記載の接着剤樹脂組成物。
- ポリエステル樹脂(A)が分岐構造を有する、請求項1または2に記載の接着剤樹脂組成物。
- ポリエステル樹脂(A)を構成するポリオール成分として、1級水酸基を2個有しかつ脂環構造を有さないジオール(a)を含み、さらに、脂環構造を有するジオール(b)および1個の1級水酸基と1個の2級水酸基を有しかつ脂環構造を有さないジオール(c)のいずれかまたは両方を含む、請求項1または2に記載の接着剤樹脂組成物。
- ポリエステル樹脂(A)を構成するポリカルボン酸成分として、ベンゼン骨格を有するポリカルボン酸を含み、さらに脂肪族ポリカルボン酸、脂環族ポリカルボン酸、およびナフタレン骨格を有するポリカルボン酸からなる群より選ばれる少なくとも一種を含む、請求項1または2に記載の接着剤樹脂組成物。
- ポリエステル樹脂(A)が不飽和ジカルボン酸(d)を構成単位として含む、請求項1または2に記載の接着剤樹脂組成物。
- 接着剤樹脂組成物がさらに触媒(B)を1種以上含む、請求項1または2に記載の接着剤樹脂組成物。
- ポリエステル樹脂(A)を120℃で15分間加熱処理した際のポリエステル樹脂(A)のテトラヒドロフラン不溶分が10質量%未満である、請求項1または2に記載の接着剤樹脂組成物。
- 請求項1または2に記載の接着剤樹脂組成物からなる接着剤層を有する積層体。
- 請求項1または2に記載の接着剤樹脂組成物からなる接着剤層を有する接着シート。
- 請求項9に記載の積層体を構成要素として含むプリント配線板。
- 請求項9に記載の積層体を構成要素として含む包装材。
- 請求項10に記載の接着シートを構成要素として含む3次元成形品加飾用積層フィルム。
- 請求項10に記載の接着シートを構成要素として含む金属缶ラミネート用フィルム。
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CN (1) | CN117980430A (ja) |
TW (1) | TW202328388A (ja) |
WO (1) | WO2023047971A1 (ja) |
Citations (6)
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JP2004250484A (ja) * | 2003-02-18 | 2004-09-09 | Nippon Ester Co Ltd | 接着剤用ポリエステル樹脂、接着剤、および積層体 |
JP2006206860A (ja) * | 2004-12-27 | 2006-08-10 | Toyobo Co Ltd | ポリエステル樹脂の製造方法 |
JP2008205370A (ja) | 2007-02-22 | 2008-09-04 | Sumitomo Bakelite Co Ltd | 樹脂組成物、支持基材付き接着剤および補強板付プリント回路板 |
JP2009084348A (ja) * | 2007-09-28 | 2009-04-23 | Toyobo Co Ltd | 溶剤可溶型結晶性ポリエステル樹脂を用いた接着剤組成物、積層体並びにフレキシブルフラットケーブル |
JP2011074188A (ja) * | 2009-09-30 | 2011-04-14 | Unitika Ltd | ポリエステル樹脂組成物、該ポリエステル樹脂組成物よりなる接着剤、該接着剤を用いた積層体 |
JP2013075965A (ja) * | 2011-09-30 | 2013-04-25 | Unitika Ltd | ポリエステル共重合体およびその製造方法 |
-
2022
- 2022-09-08 KR KR1020247011603A patent/KR20240053643A/ko unknown
- 2022-09-08 CN CN202280060780.1A patent/CN117980430A/zh active Pending
- 2022-09-08 JP JP2023512733A patent/JPWO2023047971A1/ja active Pending
- 2022-09-08 WO PCT/JP2022/033786 patent/WO2023047971A1/ja active Application Filing
- 2022-09-16 TW TW111135023A patent/TW202328388A/zh unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004250484A (ja) * | 2003-02-18 | 2004-09-09 | Nippon Ester Co Ltd | 接着剤用ポリエステル樹脂、接着剤、および積層体 |
JP2006206860A (ja) * | 2004-12-27 | 2006-08-10 | Toyobo Co Ltd | ポリエステル樹脂の製造方法 |
JP2008205370A (ja) | 2007-02-22 | 2008-09-04 | Sumitomo Bakelite Co Ltd | 樹脂組成物、支持基材付き接着剤および補強板付プリント回路板 |
JP2009084348A (ja) * | 2007-09-28 | 2009-04-23 | Toyobo Co Ltd | 溶剤可溶型結晶性ポリエステル樹脂を用いた接着剤組成物、積層体並びにフレキシブルフラットケーブル |
JP2011074188A (ja) * | 2009-09-30 | 2011-04-14 | Unitika Ltd | ポリエステル樹脂組成物、該ポリエステル樹脂組成物よりなる接着剤、該接着剤を用いた積層体 |
JP2013075965A (ja) * | 2011-09-30 | 2013-04-25 | Unitika Ltd | ポリエステル共重合体およびその製造方法 |
Also Published As
Publication number | Publication date |
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TW202328388A (zh) | 2023-07-16 |
JPWO2023047971A1 (ja) | 2023-03-30 |
KR20240053643A (ko) | 2024-04-24 |
CN117980430A (zh) | 2024-05-03 |
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