WO2012147745A1 - 新規な感光性樹脂組成物及びその利用 - Google Patents
新規な感光性樹脂組成物及びその利用 Download PDFInfo
- Publication number
- WO2012147745A1 WO2012147745A1 PCT/JP2012/060978 JP2012060978W WO2012147745A1 WO 2012147745 A1 WO2012147745 A1 WO 2012147745A1 JP 2012060978 W JP2012060978 W JP 2012060978W WO 2012147745 A1 WO2012147745 A1 WO 2012147745A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resin composition
- photosensitive resin
- weight
- meth
- molecule
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/035—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/067—Polyurethanes; Polyureas
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0041—Photosensitive materials providing an etching agent upon exposure
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0047—Photosensitive materials characterised by additives for obtaining a metallic or ceramic pattern, e.g. by firing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/033—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/032—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
- G03F7/037—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polyamides or polyimides
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
- G03F7/0388—Macromolecular compounds which are rendered insoluble or differentially wettable with ethylenic or acetylenic bands in the side chains of the photopolymer
-
- 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
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
-
- 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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/285—Permanent coating compositions
- H05K3/287—Photosensitive compositions
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0104—Properties and characteristics in general
- H05K2201/012—Flame-retardant; Preventing of inflammation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/259—Silicic material
Definitions
- This invention is excellent in tack-free property after drying of the coating film and has photosensitivity so that it can be finely processed.
- the resulting cured film is excellent in flexibility, flame retardancy and electrical insulation reliability, and is a substrate after curing.
- the present invention relates to a photosensitive resin composition, a resin film, an insulating film, and a printed wiring board with an insulating film.
- Polyimide resins are widely used in electrical and electronic applications because of their excellent heat resistance, electrical insulation reliability, chemical resistance, and mechanical properties. For example, it is used to form insulating films and protective coatings on semiconductor devices, base materials such as flexible circuit boards and integrated circuits, surface protective materials, and further, interlayer insulating films and protective films for fine circuits. .
- a coverlay film obtained by applying an adhesive to a molded body such as a polyimide film has been used.
- a solder resist or the like may be used as a surface protective material for a circuit board.
- a solder resist having a photosensitive function is preferably used when fine processing is required.
- a photosensitive solder resist a photosensitive resin composition mainly composed of acid-modified epoxy acrylate, epoxy resin, or the like is used.
- This photosensitive solder resist is excellent in electrical insulation reliability as an insulating material, but is bent. Therefore, when it is laminated on a thin and flexible circuit board such as a flexible circuit board, the warpage of the board becomes large and it is difficult to use it for a flexible circuit board. Further, the flame retardancy is poor, and when a flame retardant is added for the purpose of imparting flame retardancy, there are problems such as deterioration in physical properties and contact failure due to bleeding out from the cured film and process contamination.
- a photosensitive resin composition has been proposed that is excellent in flexibility and solder heat resistance, has good sensitivity and resolution, and can easily form a fine pattern of a heat-resistant protective film (see, for example, Patent Document 1). ).
- one of the important characteristics when carrying out the photosensitive solder resist processing is that the coating film surface is less sticky (tack-free) after the coating film is applied and the solvent is dried. This prevents the photomask from sticking to the coating film when it is irradiated with UV light by placing a photomask necessary for fine pattern formation on the surface of the coating film. This is an important characteristic for preventing the circuit boards from sticking to each other when the boards are stacked.
- the photosensitive resin composition described in Patent Document 1 contains a urethane compound having an ethylenically unsaturated bond containing a flexible skeleton and an aromatic phosphate ester, sensitivity, resolution, folding resistance, difficulty Although it is excellent in flammability, there are problems that electrical insulation reliability, bleeding out from a cured film, and stickiness after drying of the coating film are large and inferior in tack-free property.
- the ink composition for solder resist described in Patent Document 2 is excellent in tack-free coating film due to dispersion of polymer fine particles having a glass transition temperature of 20 ° C. or less, and adhesion due to generation of cracks and volume shrinkage.
- bending resistance and flame retardancy are poor and warpage is large.
- the radiation-sensitive resin composition described in Patent Document 3 is bent because it contains a crosslinked polymer particle having a carboxyl group and a hydroxyl group and a glass transition temperature of 0 ° C. or less and a phosphorus-containing polymerizable compound.
- a crosslinked polymer particle having a carboxyl group and a hydroxyl group and a glass transition temperature of 0 ° C. or less and a phosphorus-containing polymerizable compound.
- the tackiness after drying of the coating film is large and the tack-free property is poor.
- the present inventors have at least (A) a binder polymer, (B) a crosslinked polymer particle, (C) a thermosetting resin, (D) a photopolymerization initiator, (E) phosphorus.
- a blended amount of the (B) crosslinked polymer particles is 30 to 100 parts by weight with respect to 100 parts by weight of the (A) binder polymer, and the average particle diameter of the (B) crosslinked polymer particles is A photosensitive resin composition characterized by having a thickness of 1 to 10 ⁇ m is excellent in tack-free property after drying of the coating film and has photosensitivity so that it can be finely processed, and the resulting cured film is flexible and difficult.
- the present invention contains at least (A) a binder polymer, (B) crosslinked polymer particles, (C) a thermosetting resin, (D) a photopolymerization initiator, and (E) a phosphorus-based flame retardant.
- the blended amount of the crosslinked polymer particles is 30 to 100 parts by weight with respect to 100 parts by weight of the (A) binder polymer, and the average particle size of the (B) crosslinked polymer particles is 1 to 10 ⁇ m.
- the photosensitive resin composition is 30 to 100 parts by weight with respect to 100 parts by weight of the (A) binder polymer, and the average particle size of the (B) crosslinked polymer particles is 1 to 10 ⁇ m.
- the (A) binder polymer preferably contains (A1) a resin containing a urethane bond in the molecule.
- the (A) binder polymer preferably contains (A2) a resin containing a (meth) acryloyl group in the molecule.
- the compounding quantity of the said (B) crosslinked polymer particle is 50 weight part with respect to 100 weight part of resin which contains the (A2) molecule
- the (A) binder polymer preferably contains (A3) a resin that does not substantially contain a (meth) acryloyl group in the molecule.
- the (B) crosslinked polymer particles are preferably crosslinked polymer particles containing a urethane bond in the molecule.
- the (E) phosphorus flame retardant is a phosphinate.
- the amount of the (E) phosphorus flame retardant is preferably 5 to 100 parts by weight with respect to 100 parts by weight of the (A) binder polymer.
- the compounding quantity of the said (B) crosslinked polymer particle is more than 50 weight part and 100 weight part or less with respect to 100 weight part of (A) binder polymer. .
- the resin film according to the present invention is obtained by applying the above photosensitive resin composition to the surface of a substrate and then drying it.
- the insulating film according to the present invention is obtained by curing the resin film.
- the printed wiring board with an insulating film according to the present invention is formed by coating the insulating film on the printed wiring board.
- the photosensitive resin composition according to the present invention can also be configured as follows.
- the (A) binder polymer (A4) contains substantially no radical polymerizable group in the molecule, and contains a urethane bond and a carboxyl group, and ( A5) It is preferable to contain a resin containing a radical polymerizable group in the molecule and containing a urethane bond.
- the photosensitive resin composition according to the present invention preferably further includes (F) an organic solvent, and the (E) phosphorus-based flame retardant is a flame retardant that does not substantially dissolve in the organic solvent.
- the photosensitive resin composition according to the present invention preferably further contains (G) a colorant.
- the resin film of the present invention can be obtained from the photosensitive resin composition of the present invention.
- the insulating film of the present invention can be obtained from the photosensitive resin composition of the present invention.
- the printed wiring board with an insulating film of the present invention may be one in which the insulating film of the present invention is coated on the printed wiring board.
- the photosensitive resin composition of the present invention comprises at least (A) a binder polymer, (B) crosslinked polymer particles, (C) a thermosetting resin, (D) a photopolymerization initiator, and (E) a phosphorus-based resin. Containing a flame retardant, the blended amount of the (B) crosslinked polymer particles is 30 to 100 parts by weight with respect to 100 parts by weight of the (A) binder polymer, and the average particle diameter of the (B) crosslinked polymer particles is Since the photosensitive resin composition of the present invention is excellent in tack-free property after drying the coating film and has photosensitivity, it can be finely processed, and the resulting cured film has a structure of 1 to 10 ⁇ m. Excellent flexibility, flame retardancy, and electrical insulation reliability, and less warped substrate after curing. Therefore, the photosensitive resin composition of the present invention can be used for protective films of various circuit boards and exhibits excellent effects.
- the photosensitive resin composition of the present invention includes at least (A) a binder polymer, (B) a crosslinked polymer particle, (C) a thermosetting resin, (D) a photopolymerization initiator, E) containing a phosphorus-based flame retardant, the blending amount of the (B) crosslinked polymer particles is 30 to 100 parts by weight with respect to 100 parts by weight of the (A) binder polymer, and the average of the (B) crosslinked polymer particles The particle diameter may be 1 to 10 ⁇ m.
- the photosensitive resin composition of the present invention is excellent in various properties, but this is presumed to be due to the following reasons.
- the crosslinked polymer particles as component (B) are excellent in tack-free properties after drying the coating film because they serve to provide unevenness on the coating film surface, and the polymer particles are soft, leading to a decrease in flexibility of the cured film. No.
- the polymer particles have a crosslinked structure, they are excellent in heat resistance and chemical resistance.
- the coating film is very soft and excellent in folding resistance.
- the component (A) component constituting the cured film matrix penetrates into the (B) component so that strong adhesiveness can be obtained at the interface between the (A) component and the (B) component. is doing. More surprisingly, generally, when the filler component is highly filled, the elastic modulus is increased and the elongation is reduced, so that the resulting cured film is hard and brittle and the flexibility is lowered.
- the component (B) is (A ) When high loading of 30 to 100 parts by weight with respect to 100 parts by weight of the component is obtained, the cured film is used as an insulating protective film for the flexible printed wiring board because the elastic modulus of the obtained cured film is lowered and the elongation is improved. In this case, the spring back after the bending is suppressed, and a flexibility sufficient to withstand repeated bending can be imparted.
- the (A) binder polymer of the present invention is a polymer that is soluble in an organic solvent and has a weight average molecular weight of 1,000 or more and 1,000,000 or less in terms of polyethylene glycol.
- the (A) binder polymer of the present invention may be a single resin or a plurality of resins.
- the (A) binder polymer as used herein is a generic name including a resin contained in the photosensitive resin composition.
- the organic solvent is not particularly limited.
- sulfoxide solvents such as dimethyl sulfoxide and diethyl sulfoxide
- formamide solvents such as N, N-dimethylformamide and N, N-diethylformamide, N, N-dimethylacetamide
- acetamide solvents such as N, N-diethylacetamide
- pyrrolidone solvents such as N-methyl-2-pyrrolidone and N-vinyl-2-pyrrolidone, hexamethylphosphoramide, and ⁇ -butyrolactone.
- these organic polar solvents can be used in combination with an aromatic hydrocarbon such as xylene or toluene.
- the solubility of the organic solvent which is an index of solubility in the organic solvent, can be measured as parts by weight of the base polymer dissolved in 100 parts by weight of the organic solvent, and the base polymer dissolved in 100 parts by weight of the organic solvent. If it is 5 parts by weight or more, it can be made soluble in an organic solvent.
- the organic solvent solubility measurement method is not particularly limited. For example, 5 parts by weight of the base polymer is added to 100 parts by weight of the organic solvent, stirred at 40 ° C. for 1 hour, cooled to room temperature, and left for 24 hours or longer. It can be measured by a method for confirming that the solution is uniform without generation of insoluble matter or precipitates.
- the weight average molecular weight of the component (A) of the present invention can be measured, for example, by the following method.
- the component (A) of the present invention is not particularly limited.
- polyurethane resin poly (meth) acrylic resin, polyvinyl resin, polystyrene resin, polyethylene resin, polypropylene resin, polyimide resin, polyamide resin, for example.
- (A1) when a polyurethane-based resin, which is a resin containing a urethane bond in the molecule, is contained, the flexibility and bending resistance of the cured film obtained by curing the photosensitive resin composition are improved, and the cured film This is preferable because the warpage is small.
- (A2) a resin containing a (meth) acryloyl group is contained in the molecule, the photosensitivity of the photosensitive resin composition and the chemical resistance of the cured film obtained by curing the photosensitive resin composition are It is preferable because it improves.
- (A3) a resin that does not substantially contain a (meth) acryloyl group is contained in the molecule, the flexibility of the cured film obtained by curing the photosensitive resin composition, the bending resistance, the base material and This is preferable because of improving the adhesion.
- These resins may be used alone or as a plurality of (A) components.
- the resin containing a urethane bond in the molecule of the present invention contains a repeating unit containing at least one urethane bond in the molecule, and the weight average molecular weight is 1,000 or more in terms of polyethylene glycol, 1, 000,000 or less polymer.
- the resin (A1) containing a urethane bond in the molecule of the present invention can be obtained by any reaction.
- the following general formula (1) the following general formula (1)
- R 1 and X 1 each independently represent a divalent organic group, and n represents an integer of 1 or more
- the diol compound is not particularly limited as long as it has the above structure.
- Polycaprolactone diol bisphenol A, ethylene oxide adduct of bisphenol A, propylene oxide adduct of bisphenol A, hydrogenated bisphenol A, ethylene oxide adduct of hydrogenated bisphenol A, propylene oxide adduct of hydrogenated bisphenol A, etc. These can be used alone or in combination of two or more.
- the diisocyanate compound is not particularly limited as long as it has the above structure.
- the photosensitive resin composition is excellent in photosensitivity.
- the reaction between the diol compound and the diisocyanate compound may be performed after mixing two or more kinds of diol compounds, or each diol compound and diisocyanate compound are reacted separately. You may let them. Moreover, after making a diol compound and a diisocyanate compound react, you may make the obtained terminal isocyanate compound react with another diol compound, and also make this react with a diisocyanate compound. The same applies when two or more types of diisocyanate compounds are used. In this way, a resin containing a urethane bond in a desired molecule can be produced.
- the reaction temperature between the diol compound and the diisocyanate compound is preferably 40 to 160 ° C., more preferably 60 to 150 ° C. If it is less than 40 ° C., the reaction time becomes too long. If it exceeds 160 ° C., a three-dimensional reaction occurs during the reaction and gelation tends to occur.
- the reaction time can be appropriately selected depending on the scale of the batch and the reaction conditions employed. If necessary, the reaction may be performed in the presence of a catalyst such as a tertiary amine, an alkali metal, an alkaline earth metal, a metal such as tin, zinc, titanium, cobalt, or a metalloid compound.
- the above reaction can be carried out in the absence of a solvent, but in order to control the reaction, it is desirable to carry out the reaction in an organic solvent system.
- organic solvent used here is not specifically limited, For example, what was illustrated above can be used.
- the amount of the organic solvent used in the reaction is desirably such that the solute weight concentration in the reaction solution, that is, the solution concentration is 5% by weight or more and 90% by weight or less.
- the solute weight concentration in the reaction solution is more preferably 10 wt% or more and 80 wt% or less.
- the resin containing a urethane bond in the molecule of the present invention further contains at least one organic group selected from the group consisting of (a1) (meth) acryloyl group, (a2) carboxyl group, and (a3) imide group. It is preferable.
- (A1) The (meth) acryloyl group is an acryloyl group and / or a methacryloyl group. When the (a1) (meth) acryloyl group is contained, the photosensitivity of the photosensitive resin composition is improved, and the time is short. It is possible to cure by irradiation with ultraviolet rays.
- a resin containing a urethane bond in the molecule containing a (meth) acryloyl group can be obtained by any reaction.
- the following general formula (4) in addition to the diol compound and the diisocyanate compound, The following general formula (4)
- R 2 represents an m + 1 valent organic group
- R 3 represents hydrogen or an alkyl group
- m represents an integer of 1 to 3
- the compound containing the hydroxyl group and at least one (meth) acryloyl group is not particularly limited as long as it has the above structure.
- the compound containing the isocyanate group and at least one (meth) acryloyl group is not particularly limited as long as it has the structure described above.
- a resin containing a urethane bond in a molecule containing a carboxyl group can be obtained by any reaction.
- the diol compound and the diisocyanate compound the following general formula ( 6)
- R 4 represents a trivalent organic group
- the compound containing two hydroxyl groups and one carboxyl group is not particularly limited as long as it has the above structure.
- a resin containing a urethane bond in the molecule containing an imide group can be obtained by any reaction.
- the diol compound and the diisocyanate compound the following general formula ( 7)
- the tetracarboxylic dianhydride is not particularly limited as long as it has the above structure.
- the resin containing a (meth) acryloyl group in the molecule of the present invention means that the resin has at least one (meth) acryloyl group in the molecule and has a weight average molecular weight of 1,000 or more in terms of polyethylene glycol. , 000,000 or less.
- the (meth) acryloyl group is a methacryloyl group and / or an acryloyl group.
- the (A2) resin containing a (meth) acryloyl group in the molecule of the present invention can be obtained by any reaction.
- the (a1) urethane containing in the molecule containing a (meth) acryloyl group can be obtained. It can be obtained by a method similar to the method for obtaining a resin containing a bond.
- the epoxy resin of the present invention is not particularly limited.
- the bisphenol A type epoxy resin trade names jER828, jER1001, jER1002 manufactured by Japan Epoxy Resin Co., Ltd., trade names Adeka Resin EP-4100E manufactured by ADEKA Co., Ltd., Adeka Resin EP-4300E, trade names RE-310S, RE-410S manufactured by Nippon Kayaku Co., Ltd., trade names Epicron 840S, Epicron 850S, Epicron 1050, Epicron 7050, trade names Epototo YD manufactured by Toto Kasei Co., Ltd.
- Epototo YD-127 Epototo YD-128, Bisphenol F type epoxy resins are trade names of Japan Epoxy Resin Co., Ltd., jER806, jER807, and ADEKA Corporation.
- Decalesin EP-4901E Adekaresin EP-4930, Adekaresin EP-4950, trade names RE-303S, RE-304S, RE-403S, RE-404S manufactured by Nippon Kayaku Co., Ltd., trade names Epicron 830 manufactured by DIC Corporation, Epicron 835, trade names Epototo YDF-170, Epototo YDF-175S, Epototo YDF-2001, and bisphenol S-type epoxy resins manufactured by Toto Kasei Co., Ltd.
- biphenyl type epoxy resins include trade names jERYX4000, jERYL6121H, jERYL6640, jERYL6677, Nippon Kayaku Trade names NC-3000, NC-3000H, manufactured by Co., Ltd., trade names jER1256, jER4250, jER4275, manufactured by Japan Epoxy Resin Co., Ltd., and trade names, manufactured by DIC Corporation, as naphthalene-type epoxy resins.
- Cyclopentadiene type epoxy resin The product name is XD-1000 manufactured by Nippon Kayaku Co., Ltd., the product name Epicron HP-7200 manufactured by DIC Corporation, and the amine type epoxy resin includes the product names jER604 and jER630 manufactured by Japan Epoxy Resin Co., Ltd. Kasei Co., Ltd. trade names Epototo YH-434, Epototo YH-434L, Mitsubishi Gas Chemical Co., Ltd. trade names TETRAD-X, TERRAD-C, and flexible epoxy resins are trade names of Japan Epoxy Resin Co., Ltd.
- urethane-modified epoxy resins include trade names Adeka Resin EPU-6, Adeka Resin EPU-73, Adeka Resin EPU-78 manufactured by ADEKA Corporation. 11.
- Adeka Resin EP-49-20, and heterocyclic ring-containing epoxy resins include trade name TEPIC manufactured by Nissan Chemical Co., Ltd. These can be used alone or in combination of two or more.
- the above-mentioned reaction between the epoxy resin and (meth) acrylic acid can be carried out by any method.
- (meth) acrylic acid is used in the solution in which the epoxy resin is dispersed or dissolved in an organic solvent.
- a catalyst for esterification preferably trimethylamine, which is a tertiary amine, triethylamine, triphenylphosphine which is a phosphorus compound, 2-ethyl-4-methylimidazole which is an imidazole compound, etc.
- An epoxy (meth) acrylate resin solution is prepared by heating to 120 ° C. or lower and reacting. At this time, the total amount of (meth) acrylic acid added is 0.1 to 1.0 mol with respect to 1 mol of the epoxy group of the epoxy resin.
- the resin that does not substantially contain a (meth) acryloyl group in the molecule of the present invention means that the resin has substantially no (meth) acryloyl group in the molecule, and the weight average molecular weight is 1,000 or more in terms of polyethylene glycol, 1,000,000 or less polymers.
- the phrase “substantially containing no (meth) acryloyl group in the molecule” means that it does not have to contain any (meth) acryloyl group in the molecule and does not impair the expression of the effect of the present invention. It may be contained.
- the range which does not impair the expression of the effect of the present invention means that the value determined by measuring the intramolecular (meth) acryloyl group as the iodine value is less than 5.
- the iodine value is a value obtained by converting the amount of halogen bonded to 100 g of a sample into the number of g of iodine, and can be measured by a method defined in JIS K0070.
- the resin (A3) of the present invention which does not substantially contain a (meth) acryloyl group in the molecule can be obtained by any reaction.
- (meth) acrylic acid and / or (meth) acrylic acid It can be obtained by reacting an ester derivative in a solvent in the presence of a radical polymerization initiator.
- the (meth) acrylic acid ester derivative of the present invention is not particularly limited.
- (meth) acrylic acid ester derivatives it is particularly preferable to use methyl (meth) acrylate, ethyl (meth) acrylate, and butyl (meth) acrylate to improve the flexibility and resistance of the cured film of the photosensitive resin composition. It is preferable from the viewpoint of chemical properties.
- radical polymerization initiator examples include azo compounds such as azobisisobutyronitrile, azobis (2-methylbutyronitrile), 2,2′-azobis-2,4-dimethylvaleronitrile, t- Organic peroxides such as butyl hydroperoxide, cumene hydroperoxide, benzoyl peroxide, dicumyl peroxide, di-t-butyl peroxide, persulfates such as potassium persulfate, sodium persulfate, ammonium persulfate, Acid value hydrogen etc. are mentioned, These can be used individually or in combination of 2 or more types.
- azo compounds such as azobisisobutyronitrile, azobis (2-methylbutyronitrile), 2,2′-azobis-2,4-dimethylvaleronitrile
- t- Organic peroxides such as butyl hydroperoxide, cumene hydroperoxide, benzoyl peroxide, dicumyl peroxide, di-
- the amount of the radical polymerization initiator used is preferably 0.001 to 5 parts by weight, more preferably 0.01 to 1 part by weight with respect to 100 parts by weight of the monomer used. When the amount is less than 0.001 part by weight, the reaction hardly proceeds, and when the amount is more than 5 parts by weight, the molecular weight may be lowered.
- the amount of the solvent used in the reaction is preferably such that the solute weight concentration in the reaction solution, that is, the solution concentration is 5% by weight or more and 90% by weight or less, and 20% by weight or more and 70% by weight or less. More preferably.
- the solution concentration is less than 5%, the polymerization reaction is difficult to occur and the reaction rate is lowered, and a desired structural substance may not be obtained.
- the solution concentration is more than 90% by weight, the reaction solution has a high viscosity. And the reaction may be non-uniform.
- the reaction temperature is preferably 20 to 120 ° C, more preferably 50 to 100 ° C.
- the reaction time can be appropriately selected depending on the scale of the batch and the reaction conditions employed.
- the (B) crosslinked polymer particle of the present invention is a spherical polymer having a crosslinked structure in the molecule and an average particle diameter of 1 to 100 ⁇ m.
- the spherical shape may be a true spherical shape or an elliptical shape.
- the average particle size is 1 ⁇ m or less, the viscosity and thixotropy of the photosensitive resin composition are increased, and appearance defects may occur due to foaming of the coating film or insufficient leveling during coating, and surface unevenness forming effect. There are few stickiness after coating film drying, and it may be inferior to tack-free property.
- the average particle diameter is 100 ⁇ m or more, the particles may be exposed in the opening when forming the fine pattern, resulting in poor resolution.
- the average particle size of the component (B) of the present invention is preferably 1 to 50 ⁇ m, more preferably 1 to 10 ⁇ m, so that the resolution of the fine pattern, the flexibility of the resulting cured film, and the chemical resistance are excellent. Therefore, it is preferable.
- the average particle diameter of the component (B) of the present invention can be measured, for example, as a volume-based median diameter (particle diameter with respect to an integrated distribution value of 50%) by the following method.
- the blending amount of (B) crosslinked polymer particles is 30 to 100 parts by weight of (A) binder polymer. It is essential to be 100 parts by weight. More preferably, it is more than 50 parts by weight and 100 parts by weight or less.
- the cured film obtained is hard and brittle and the flexibility is reduced because the elastic modulus is high and the elongation is small, but in the present invention, the polymer particles are soft, so the cured film Does not cause a decrease in flexibility. Furthermore, since the polymer particles have a crosslinked structure, they are excellent in heat resistance and chemical resistance. Further, by combining the component (A) and the component (B), the component (A) constituting the cured film matrix soaks into the component (B), so that the interface between the component (A) and the component (B) With this, a strong adhesiveness can be obtained, so that the coating film is very soft and has excellent folding resistance.
- the compounding quantity of (B) component is more than 50 weight part and 500 weight part or less with respect to 100 weight part of resin which contains (A2) (meth) acryloyl group in a molecule
- polymethyl methacrylate-based crosslinked polymer particles include Gantz Pearl GM-0600, GM-0600W, and crosslinked polymethacrylic acid manufactured by Gantz Kasei Co., Ltd.
- methyl-based crosslinked polymer particles include Gantz Pearl GM-0105, GM-0205S, GM-0401S, GM-0407S, GM-0449S, GM-0630H, GM-0801S, GM-0807S, manufactured by Gantz Kasei Co., Ltd.
- GM-0849SGM-1001 GM-1001-S, GM-1007S, GM-1407S, GM-1505S-S, GM-2001, GM-2003S-S, GM-2007S, GM-2801, GM-4003, GM- 5003, GM-9005, GMX-0610, G X-0810, GMP-0800, GMDM-050M, GMDM-080M, GMDM-100M, GMDM-150M, product names manufactured by Sekisui Plastics Co., Ltd.
- butyl methacrylate-based crosslinked polymer particles include Gantz Pearl GB-05S, GB-08S, GB-10S, and GB-15S manufactured by Gantz Kasei Co., Ltd., and the product name Techpolymer BM30X- manufactured by Sekisui Chemicals Co., Ltd. 5, BM30X-8, the cross-linked acrylic cross-linked polymer particles are the product name Gantz Pearl GMP-0820 manufactured by Gantz Kasei Co., Ltd., and the acrylic copolymer cross-linked polymer particles are the product name Gantz Pearl GBM- manufactured by Gantz Kasei Co., Ltd.
- Product names Techpolymer ABX-8, AF10X-8, AFX-15, ARX-15 manufactured by Sekisui Plastics Co., Ltd., and nylon-based crosslinked polymer particles include product names Gantz Pearl GPA-550 manufactured by Gantz Kasei Co., Ltd.
- silicone-based crosslinked polymer particles the product names Gantz Pearl SI-020, SI-030, SI-045 manufactured by Gantz Kasei Co., Ltd.
- the crosslinked silicone-based crosslinked polymer particles the product name Gantz Pearl SIG manufactured by Gantz Kasei Co., Ltd. -070, a crosslinked urethane-based crosslinked polymer particle manufactured by Dainichi Seika Kogyo Co., Ltd.
- Dymic beads UCN-8070CM clear, UCN-8150CM clear, UCN-5070D clear, UCN-5150D clear, trade names Art Pearl C-100 transparent, C-200 transparent, C-300 transparent, manufactured by Negami Kogyo Co., Ltd.
- the component (B) of the present invention uses a crosslinked polymer particle that contains a urethane bond in the molecule among the crosslinked polymer particles, in order to improve the flexibility of the cured film to reduce warpage and to withstand repeated bending. Is preferred.
- thermosetting resin of the present invention is a compound containing at least one thermosetting organic group in the molecule.
- (C) component of this invention will not be specifically limited if it is the said structure,
- the component (C) of the present invention can use a polyfunctional epoxy resin, in particular, can impart heat resistance to a cured film obtained by curing the photosensitive resin composition, This is preferable because adhesion to a conductor such as a metal foil or a circuit board can be imparted.
- the polyfunctional epoxy resin is a compound containing at least two epoxy groups in the molecule, and is not particularly limited. For example, those listed as the epoxy resin can be used.
- thermosetting resin in the photosensitive resin composition of this invention
- phenol resins such as a phenol novolak resin, a cresol novolak resin, a naphthalene type phenol resin, an amino resin, and a urea resin , Melamine, dicyandiamide and the like, and these can be used alone or in combination of two or more.
- the curing accelerator is not particularly limited.
- phosphine compounds such as triphenylphosphine; amine compounds such as tertiary amine, trimethanolamine, triethanolamine and tetraethanolamine; 1,8- Borate compounds such as diaza-bicyclo [5,4,0] -7-undecenium tetraphenylborate, imidazole, 2-ethylimidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-un Imidazoles such as decylimidazole, 1-benzyl-2-methylimidazole, 2-heptadecylimidazole, 2-isopropylimidazole, 2,4-dimethylimidazole, 2-phenyl-4-methylimidazole; 2-methylimidazoline, 2- Ethyl imidazoline, -Imidazolines such as isopropylimidazoline, 2-phenylimidazoline, 2-unde
- the (D) photopolymerization initiator of the present invention is a compound that is activated by energy such as UV and initiates / promotes a reaction of a radical polymerizable group.
- the component (D) of the present invention is not particularly limited as long as it has the above structure.
- the (E) phosphorus flame retardant of the present invention is a compound that contains at least one phosphorus element in the molecule and has an effect of suppressing the combustion of organic matter.
- the form of the (E) phosphorus flame retardant of the present invention is not particularly limited, and may be a filler-type flame retardant.
- the component (E) of the present invention is not particularly limited as long as it has the above structure.
- red phosphorus, condensed phosphate ester compounds, cyclic organic phosphorus compounds, phosphazene compounds, phosphorus-containing (meth) acrylate compounds , Phosphorus-containing epoxy compounds, phosphorus-containing polyol compounds, phosphorus-containing amine compounds, ammonium polyphosphate, melamine phosphate, phosphinate, and the like can be used alone or in combination of two or more. .
- the component (E) of the present invention can impart excellent flame retardancy to a cured film obtained by curing a photosensitive resin composition, particularly using a phosphinate.
- a photosensitive resin composition particularly using a phosphinate.
- contact failure and process contamination can be suppressed, which is preferable.
- the phosphinic acid salt of the present invention is a compound represented by the following general formula (8).
- R 5 and R 6 each independently represent a linear or branched alkyl group or aryl group having 1 to 6 carbon atoms, and M represents Mg, Ca, Al, Sb, Sn, Ge, Ti , Fe, Zr, Zn, Ce, Bi, Sr, Mn, Li, Na and K represents a metal selected from at least one selected from the group consisting of 1 to 4).
- the phosphinic acid salt of the present invention is not particularly limited as long as it has the above structure.
- aluminum trisdiethylphosphinate, aluminum trismethylethylphosphinate, aluminum trisdiphenylphosphinate, zinc bisdiethylphosphinate, bismethylethylphosphine examples thereof include zinc oxide, zinc bisdiphenylphosphinate, titanyl bisdiethylphosphinate, titanyl bismethylethylphosphinate, titanyl bisdiphenylphosphinate, and the like. These can be used alone or in combination of two or more. Of these, aluminum trisdiethylphosphinate and aluminum trismethylethylphosphinate are particularly preferable because high flame retardancy can be obtained.
- the content of the component (E) of the present invention is preferably 5 to 100 parts by weight, more preferably 10 to 50 parts by weight with respect to 100 parts by weight of the component (A). Excellent in electrical insulation reliability.
- the component (E) is less than 5 parts by weight, the flame retardancy may be inferior.
- the crease resistance may be inferior, or when the photosensitive resin composition solution is applied. In some cases, the appearance deteriorates due to foaming or insufficient leveling of the coating film during coating.
- the above radical polymerizable compound is a compound containing in its molecule a radical polymerizable group that undergoes a polymerization reaction by a radical polymerization initiator.
- a resin having at least one unsaturated double bond in the molecule is preferable.
- the unsaturated double bond is preferably a (meth) acryloyl group or a vinyl group.
- the radical polymerizable compound is preferably used when the component (A) does not contain a (meth) acryloyl group. Further, the component (A) may be used even if it contains a (meth) acryloyl group.
- an aqueous development represented by an alkaline aqueous solution of the photosensitive resin composition is used. This is preferable because the solubility in the solution is improved and the development time is shortened.
- filler examples include fine inorganic fillers such as silica, mica, talc, barium sulfate, wollastonite, and calcium carbonate.
- antifoaming agent examples include acrylic compounds, vinyl compounds, and butadiene compounds.
- leveling agent examples include acrylic compounds and vinyl compounds.
- Examples of the colorant include phthalocyanine compounds, azo compounds, and carbon black.
- adhesion assistant also referred to as adhesion-imparting agent
- adhesion-imparting agent examples include silane coupling agents, triazole compounds, tetrazole compounds, and triazine compounds.
- polymerization inhibitor examples include hydroquinone and hydroquinone monomethyl ether.
- the photosensitive resin composition of the present invention is excellent in flame retardancy because it contains the component (E), but other flame retardants may be added to obtain a higher flame retardant effect.
- the flame retardant for example, a halogen-containing compound, a metal hydroxide, a melamine compound, or the like can be added.
- the above various additives can be used alone or in combination of two or more.
- the photosensitive resin composition of the present invention can be obtained by pulverizing and dispersing the above components (A) to (E) and other components and mixing them.
- the pulverizing / dispersing method is not particularly limited, and for example, it is performed using a general kneading apparatus such as a bead mill, a ball mill, or a three roll.
- the particle diameter of the particles contained in the photosensitive resin composition can be measured by a method using a gauge specified in JIS K 5600-2-5. Moreover, if a particle size distribution measuring apparatus is used, an average particle diameter, a particle diameter, and a particle size distribution can be measured.
- a cured film or a relief pattern is formed as follows. can do.
- the photosensitive resin composition or the photosensitive resin composition solution is applied to a substrate and dried to remove the organic solvent.
- the substrate can be applied by screen printing, curtain roll, river roll, spray coating, spin coating using a spinner, or the like.
- the coating film (preferably having a thickness of 5 to 100 ⁇ m, particularly 10 to 100 ⁇ m) is dried at 120 ° C. or less, preferably 40 to 100 ° C.
- a negative photomask is placed on the dried coating film and irradiated with actinic rays such as ultraviolet rays, visible rays, and electron beams.
- actinic rays such as ultraviolet rays, visible rays, and electron beams.
- the relief pattern can be obtained by washing out the unexposed portion with a developer using various methods such as shower, paddle, dipping or ultrasonic waves. Since the time until the pattern is exposed varies depending on the spraying pressure and flow rate of the developing device and the temperature of the etching solution, it is desirable to find the optimum device conditions as appropriate.
- This developer may contain a water-soluble organic solvent such as methanol, ethanol, n-propanol, isopropanol, or N-methyl-2-pyrrolidone.
- alkaline compound that gives the alkaline aqueous solution include hydroxides, carbonates, hydrogen carbonates, amine compounds, and the like of alkali metals, alkaline earth metals, or ammonium ions, and specifically sodium hydroxide.
- Ropiruamin aqueous solution with compounds of other long as it exhibits basicity can also be naturally used.
- the concentration of the alkaline compound that can be suitably used in the development step of the photosensitive resin composition of the present invention is preferably 0.01 to 20% by weight, particularly preferably 0.02 to 10% by weight.
- the temperature of the developer depends on the composition of the photosensitive resin composition and the composition of the alkali developer, and is generally 0 ° C. or higher and 80 ° C. or lower, more generally 10 ° C. or higher and 60 ° C. or lower. Is preferably used.
- the relief pattern formed by the above development process is rinsed to remove unnecessary residues.
- the rinsing liquid include water and acidic aqueous solutions.
- the relief pattern obtained above is heat-treated.
- a cured film having high heat resistance can be obtained.
- the thickness of the cured film is determined in consideration of the wiring thickness and the like, but is preferably about 2 to 50 ⁇ m.
- the final curing temperature at this time is desired to be able to be cured by heating at a low temperature for the purpose of preventing oxidation of the wiring and the like and not reducing the adhesion between the wiring and the substrate.
- the curing temperature at this time is preferably 100 ° C. or higher and 250 ° C. or lower, more preferably 120 ° C. or higher and 200 ° C. or lower, and particularly preferably 130 ° C. or higher and 180 ° C. or lower. If the final heating temperature is high, the wiring is oxidatively deteriorated, which is not desirable.
- the cured film formed from the photosensitive resin composition of the present invention is excellent in flexibility, flame retardancy, and electrical insulation reliability, and the warpage of the substrate after curing is small.
- the insulating film obtained from the photosensitive resin composition preferably has a thickness of about 2 to 50 ⁇ m and a resolution of at least 10 ⁇ m after photocuring, particularly a resolution of about 10 to 1000 ⁇ m.
- the insulating film obtained from the photosensitive resin composition is particularly suitable as an insulating material for a flexible substrate.
- it is used for various photo-curing wiring coating protective agents, photosensitive heat-resistant adhesives, electric wire / cable insulation coatings, and the like.
- this invention can provide the same insulating material even if it uses the resin film obtained by apply
- the photosensitive resin composition of the present invention can also be configured as follows.
- the binder polymer is (A4) a resin containing substantially no radical polymerizable group in the molecule and containing a urethane bond and a carboxyl group, and (A5) It is also possible to contain a resin containing a radical polymerizable group in the molecule and containing a urethane bond.
- the photosensitive resin composition of the present embodiment is excellent in various properties, but this is presumed to be due to the following reason. That is, the resin which does not substantially contain a radically polymerizable group in the molecule as the component (A4) and contains a urethane bond and a carboxyl group does not substantially contain a radically polymerizable group and therefore contains this.
- the photosensitive resin composition containing this is excellent in the solubility to the aqueous alkali solution which is a developing solution at the time of forming a fine pattern. Further, by combining the urethane bond-containing resin containing a radical polymerizable group in the molecule as the component (A4) and the component (A5), both flexibility and photosensitivity can be achieved at a high level. .
- the crosslinked polymer particle plays a role of providing unevenness on the surface of the coating film, so it is excellent in tack-free property after drying the coating film obtained from the photosensitive resin composition containing this, and the polymer particles are soft. Therefore, the flexibility of the coating film is not reduced. Furthermore, since the polymer particles have a crosslinked structure, they are excellent in heat resistance and chemical resistance. Furthermore, surprisingly, in general, when the filler component is highly filled, the flexibility to withstand repeated bending is lowered. However, by combining the components (A4), (A5), and (B), photosensitivity is achieved. However, the cured film obtained from the photosensitive resin composition containing them is very soft and has excellent crease resistance.
- cross-linked polymer particles and the (A4) component and the (A5) component constituting the matrix of the cured film have better affinity than the inorganic filler because the cross-linked polymer particles are organic fillers. Since the (A4) component and the (A5) component penetrate into the inside from the surface, it is speculated that the strong adhesiveness can be obtained at the interface between the (A4) component and the (A5) component and the (B) component. .
- the above-described excellent characteristics are further improved.
- a resin containing substantially no radical polymerizable group in the molecule and containing a urethane bond and a carboxyl group is substantially free of radically polymerizable group in the molecule and contains at least one urethane. It is a polymer having a weight average molecular weight of 1,000 or more and 1,000,000 or less in terms of polyethylene glycol, which contains a repeating unit containing a bond and a repeating unit containing at least one carboxyl group.
- the term “substantially free of radically polymerizable group in the molecule” means that the molecule may not contain any radically polymerizable group such as (meth) acryloyl group or vinyl group, and the effect of the present invention. If it is a range which does not impair expression of, you may contain.
- the range not impairing the manifestation of the effect of the present invention is that the value determined by measuring the radically polymerizable group in the molecule of the component (A4) as an iodine value is less than 5.
- the iodine value is a value obtained by converting the amount of halogen bonded to 100 g of a sample into the number of g of iodine, and can be measured by a method defined in JIS K0070.
- the molecular weight of the component (A4) can be measured, for example, by the following method.
- the carboxyl group content of the component can be measured as an acid value.
- the acid value of the component (A4) is preferably 50 to 200 mgKOH / g, more preferably 50 to 150 mgKOH / g.
- the acid value is less than 50 mgKOH / g, the alkali developability of the photosensitive resin composition may be reduced.
- the acid value is more than 200 mgKOH / g, the hygroscopicity of the cured film may be increased and the electrical insulation reliability may be reduced. is there.
- the component (A4) can be obtained by any reaction.
- the following general formula (9) is the following general formula (9)
- R 2 represents a trivalent organic group
- R 1 is a divalent organic group
- R 2 is a trivalent organic group
- X 1 is a divalent organic group
- n is 1 Or more
- m represents an integer of 1 or more
- the diol compound is not particularly limited as long as it has the above structure.
- Polycaprolactone diol bisphenol A, ethylene oxide adduct of bisphenol A, propylene oxide adduct of bisphenol A, hydrogenated bisphenol A, ethylene oxide adduct of hydrogenated bisphenol A, propylene oxide adduct of hydrogenated bisphenol A, etc. These can be used alone or in combination of two or more.
- the compound containing two hydroxyl groups and one carboxyl group is not particularly limited as long as it has the above structure.
- the diisocyanate compound is not particularly limited as long as it has the above structure.
- the photosensitive resin composition is excellent in photosensitivity.
- reaction with a diisocyanate compound may be performed after mixing 2 or more types of diol compounds, or each diol compound and diisocyanate compound may be made to react separately. Good. Moreover, after making a diol compound and a diisocyanate compound react, you may make the obtained terminal isocyanate compound react with another diol compound, and also make this react with a diisocyanate compound. The same applies when two or more types of diisocyanate compounds are used. In this way, the desired component (A4) can be produced.
- the reaction temperature between the diol compound and the diisocyanate compound is preferably 40 to 160 ° C., more preferably 60 to 150 ° C. If it is less than 40 ° C., the reaction time becomes too long. If it exceeds 160 ° C., a three-dimensional reaction occurs during the reaction and gelation tends to occur.
- the reaction time can be appropriately selected depending on the scale of the batch and the reaction conditions employed. If necessary, the reaction may be performed in the presence of a catalyst such as a tertiary amine, an alkali metal, an alkaline earth metal, a metal such as tin, zinc, titanium, cobalt, or a metalloid compound.
- the above reaction can be carried out in the absence of a solvent.
- the organic solvent include sulfoxide solvents such as dimethyl sulfoxide and diethyl sulfoxide, N , N-dimethylformamide, N, N-diethylformamide and other formamide solvents, N, N-dimethylacetamide, N, N-diethylacetamide and other acetamide solvents, N-methyl-2-pyrrolidone, N-vinyl-2 -Pyrrolidone solvents such as pyrrolidone, hexamethylphosphoramide, ⁇ -butyrolactone and the like can be mentioned.
- these organic polar solvents can be used in combination with an aromatic hydrocarbon such as xylene or toluene.
- the amount of solvent used in the reaction is desirably such that the solute weight concentration in the reaction solution, that is, the solution concentration is 5% by weight or more and 90% by weight or less.
- the solute weight concentration in the reaction solution is more preferably 10 wt% or more and 80 wt% or less.
- a resin containing a radical polymerizable group in the molecule and containing a urethane bond is a weight containing a radical polymerizable group and a urethane bond in which a polymerization reaction proceeds by at least one radical polymerization initiator. It is a polymer having an average molecular weight of 1,000 or more and 100,000 or less in terms of polyethylene glycol.
- the weight average molecular weight is 1,000 or less, flexibility and chemical resistance may be lowered.
- the weight average molecular weight is 100,000 or more, alkali developability is lowered, and the viscosity of the photosensitive resin composition is reduced. May be higher.
- the radically polymerizable group of the component (A5) is preferably an unsaturated double bond. Furthermore, the unsaturated double bond is preferably a (meth) acryloyl group or a vinyl group.
- the radical polymerizable group content can be measured as an iodine value in the same manner as the component (A4).
- the iodine value of the component (A5) is preferably 10 to 200, more preferably 50 to 150. When the iodine value is less than 10, the photosensitivity of the photosensitive resin composition may be lowered. When the iodine value is more than 200, the crosslinking density becomes high due to too many photosensitive groups, and the flexibility of the obtained cured film is increased. It may worsen and warp may increase.
- the component (A5) is not particularly limited as long as it is a urethane bond-containing resin containing a radical polymerizable group in the molecule.
- it can be obtained in the case of a urethane (meth) acrylate resin or a urethane-modified epoxy (meth) acrylate resin.
- the cured film is preferred because it has excellent crease resistance and small warpage.
- the component (A5) of the present invention can be obtained by any reaction.
- the urethane (meth) acrylate resin is a diol compound represented by the general formula (9) and the general formula (11).
- the diisocyanate compound represented by general formula (13) is a diol compound represented by the general formula (9) and the general formula (11).
- R 3 represents an r + 1 valent organic group
- R 4 represents hydrogen or an alkyl group
- r represents an integer of 1 to 3
- X 2 represents a s + 1-valent organic group
- X 3 represents hydrogen or an alkyl group .s 1 to 3 indicates an integer
- isocyanate group and at least one indicated a (meth) acryloyl groups It can be obtained by reacting the contained compound.
- the diol compound is not particularly limited as long as it has the above structure.
- Polycaprolactone diol bisphenol A, ethylene oxide adduct of bisphenol A, propylene oxide adduct of bisphenol A, hydrogenated bisphenol A, ethylene oxide adduct of hydrogenated bisphenol A, propylene oxide adduct of hydrogenated bisphenol A, etc. These can be used alone or in combination of two or more.
- the diisocyanate compound is not particularly limited as long as it has the above structure.
- the photosensitive resin composition is excellent in photosensitivity.
- the compound containing the hydroxyl group and at least one (meth) acryloyl group is not particularly limited as long as it has the above structure.
- the compound containing the isocyanate group and at least one (meth) acryloyl group is not particularly limited as long as it has the structure described above.
- the method for synthesizing the component (A5) includes a diol compound, a diisocyanate compound, a compound containing a hydroxyl group and at least one (meth) acryloyl group, and / or a compound containing an isocyanate group and at least one (meth) acryloyl group.
- reaction with a diisocyanate compound may be performed after mixing 2 or more types of diol compounds, or each diol compound and diisocyanate compound may be made to react separately. Good.
- the obtained terminal isocyanate compound may be further reacted with a compound containing a hydroxyl group and at least one (meth) acryloyl group.
- the reaction with the diol compound may be performed after mixing the two or more types of diisocyanate compounds, or each diisocyanate compound and the diol compound may be reacted separately. Good.
- the obtained terminal hydroxyl compound may be further reacted with a compound containing isocyanate and at least one (meth) acryloyl group.
- the desired component (A5) can be produced.
- the reaction temperature between the diol compound and the diisocyanate compound is preferably 40 to 160 ° C., more preferably 60 to 150 ° C. If it is less than 40 ° C., the reaction time becomes too long. If it exceeds 160 ° C., a three-dimensional reaction occurs during the reaction and gelation tends to occur.
- the reaction time can be appropriately selected depending on the scale of the batch and the reaction conditions employed. If necessary, the reaction may be performed in the presence of a catalyst such as a tertiary amine, an alkali metal, an alkaline earth metal, a metal such as tin, zinc, titanium, cobalt, or a metalloid compound.
- the above reaction can be carried out in the absence of a solvent.
- the organic solvent include sulfoxide solvents such as dimethyl sulfoxide and diethyl sulfoxide, N , N-dimethylformamide, N, N-diethylformamide and other formamide solvents, N, N-dimethylacetamide, N, N-diethylacetamide and other acetamide solvents, N-methyl-2-pyrrolidone, N-vinyl-2 -Pyrrolidone solvents such as pyrrolidone, hexamethylphosphoramide, ⁇ -butyrolactone and the like can be mentioned.
- these organic polar solvents can be used in combination with an aromatic hydrocarbon such as xylene or toluene.
- the amount of solvent used in the reaction is desirably such that the solute weight concentration in the reaction solution, that is, the solution concentration is 5% by weight or more and 90% by weight or less.
- the solute weight concentration in the reaction solution is more preferably 10 wt% or more and 80 wt% or less.
- urethane-modified epoxy (meth) acrylate resin examples include trade names KAYARAD UXE-3000 and UXE-3024 manufactured by Nippon Kayaku Co., Ltd.
- the component (A5) can be used alone or in combination of two or more.
- the content of the component (A5) is preferably 10 to 200 parts by weight, more preferably 10 to 100 parts by weight, based on 100 parts by weight of the component (A4). It is preferable because the resolution of the resulting fine pattern, the flexibility of the resulting cured film, and the chemical resistance are excellent.
- the cured film formed from the photosensitive resin composition of the present embodiment is excellent in flexibility, flame retardancy, and electrical insulation reliability, and the warped substrate after curing is small.
- the phosphorus-based flame retardant is a flame retardant that does not substantially dissolve in the organic solvent
- the photosensitive resin composition further includes (F) an organic solvent. It can also be contained.
- the photosensitive resin composition of the present embodiment is excellent in various properties, but this is presumed to be due to the following reason. That is, (B) the crosslinked polymer particles have an excellent tack-free property after drying the coating film because they serve to provide unevenness on the coating film surface, and the polymer particles are soft, so that the flexibility of the cured film is not reduced. Furthermore, since the polymer particles have a crosslinked structure, they are excellent in heat resistance and chemical resistance. Furthermore, surprisingly, in general, when the filler component is highly filled, the flexibility to withstand repeated bending is lowered, but by combining (A) the binder polymer and (B) the crosslinked polymer particles, the coating film is very It is soft and has excellent folding resistance.
- the above-described excellent characteristics are further improved.
- the flame retardant that does not substantially dissolve in an organic solvent is a compound that does not dissolve in an organic solvent but exists as a solid and is solid at room temperature and has an effect of suppressing the combustion of organic matter.
- not substantially dissolved may not be dissolved in an organic solvent at all, or may be dissolved as long as the effect of the present invention is not impaired.
- the range that does not impair the manifestation of the effect of the present invention is that the weight of the flame retardant dissolved in 100 parts by weight of the organic solvent at room temperature is less than 0.1 parts by weight.
- the method for measuring parts by weight of the flame retardant that dissolves in 100 parts by weight of the organic solvent at room temperature is not particularly limited.
- 1 part by weight of the flame retardant is added to 100 parts by weight of the organic solvent, and 1 part at 40 ° C.
- After stirring for a time cooled to room temperature and allowed to stand for 24 hours or longer, filtered under reduced pressure using a PTFE membrane filter having a pore size of 0.45 ⁇ m, further washed with the organic solvent used three times, It can be measured by drying under reduced pressure for 8 hours and measuring the weight change of the filter.
- the cured film formed from the photosensitive resin composition of the present embodiment containing an organic solvent is excellent in flexibility, flame retardancy, and electrical insulation reliability, and has little warping after curing.
- the photosensitive resin composition of this Embodiment can also contain (G) a coloring agent.
- the photosensitive resin composition of the present embodiment containing a colorant is excellent in various characteristics, but this is presumed to be due to the following reason. Yes. That is, (B) the crosslinked polymer particles have a function of providing irregularities on the surface of the coating film, so that the coating film is excellent in tack-free property after drying, the coating film can be matted, and the crosslinked polymer particles are soft. Therefore, the flexibility of the cured film is not reduced. Furthermore, since the polymer particles have a crosslinked structure, they are excellent in heat resistance and chemical resistance.
- the coating film is very It is soft and has excellent folding resistance.
- the (A) component constituting the cured film matrix penetrates into the (B) component so that strong adhesiveness can be obtained at the interface between the (A) component and the (B) component. is doing.
- the colorant (G) when combined with the component (B), the component (B) exerts a stress relaxation effect in the cured film, and the cured film has a bending resistance that can withstand repeated bending. It becomes possible to express.
- the above-described excellent characteristics are further improved.
- (G) The specific color of the colorant is not particularly limited.
- (G1) may be a black colorant
- (G2) may be a white colorant, or other colorant. May be.
- the (G1) black colorant of the present invention is a substance having an effect of coloring other substances such as black dyes and black pigments black, and a black pigment is preferable from the viewpoint of colorability and heat resistance.
- the black pigment is not particularly limited.
- two or more types can be used in combination.
- carbon black is particularly preferable because high colorability and concealability can be obtained.
- a titanium oxide, a zinc oxide, magnesium oxide, a zirconium oxide, an aluminum oxide, barium sulfate, a silica, a talc, a mica, aluminum hydroxide, a calcium silicate examples thereof include aluminum silicate and hollow resin particles, and these can be used alone or in combination of two or more.
- titanium oxide it is preferable because high colorability and reflectance can be obtained.
- rutile type titanium oxide it is preferable because of excellent colorability, concealability and stability.
- the rutile titanium oxide in the present invention is an oxide of titanium having a tetragonal crystal structure and is an inorganic compound represented by the composition formula TiO 2 .
- the production method is not particularly limited. For example, it can be produced by a so-called sulfuric acid method in which a titanium sulfate solution is hydrolyzed and the resulting hydrous titanium oxide is baked, or a so-called chlorine method in which titanium halide is vapor-phase oxidized. it can.
- titanium oxide produced by the sulfuric acid method for example, a metal such as zinc, potassium, aluminum, lithium, niobium, magnesium, or a compound such as phosphorus may be added as a firing treatment agent in the production process.
- a compound such as aluminum or potassium may be added as a treating agent during the oxidation process of titanium tetrachloride in the production process.
- the reflectance and concealment of the cured film obtained from the photosensitive resin composition are good, and discoloration at low temperatures or low reflectance is unlikely to occur. This is preferable.
- rutile-type titanium oxide examples include trade names TYPAKE R-550, R-580, R-630, R-670, R-680, R-780, R-780- manufactured by Ishihara Sangyo Co., Ltd. 2, R-820, R-830, R-850, R-855, R-930, R-980, CR-50, CR-50-2, CR-57, CR-58, CR-58-2, CR-60, CR-60-2, CR-63, CR-67, CR-Super70, CR-80, CR-85, CR-90, CR-90-2, CR-93, CR-95, CR- 953, CR-97, PF-736, PF-737, PF-742, PF-690, PF-691, PF-711, PF-739, PF-740, PC-3, S-305, CR-EL, PT-301, PT-401M, PT 501A, PT-501R, trade names R-3
- the cured film formed from the photosensitive resin composition of the present embodiment containing a colorant is excellent in concealment, excellent in flexibility, flame retardancy, and electrical insulation reliability. Small warpage.
- the resulting resin solution had a solid content concentration of 50%, a weight average molecular weight of 48,000, and a solid content acid value of 78 mgKOH / g.
- the solid content concentration, weight average molecular weight, and acid value were measured by the following methods.
- the obtained resin solution had a solid content concentration of 52%, a weight average molecular weight of 8,600, and a solid content acid value of 18 mgKOH / g.
- the solid content concentration, weight average molecular weight, and acid value were measured in the same manner as in Synthesis Example 1.
- ODPA 3,3 ′, 4,4′-oxydiphthalic dianhydride
- the obtained resin solution had a solid content concentration of 53%, a weight average molecular weight of 9,200, and a solid content acid value of 86 mgKOH / g.
- the solid content concentration, weight average molecular weight, and acid value were measured in the same manner as in Synthesis Example 1.
- the photosensitive resin composition was first mixed with a general stirring device with a stirring blade, and then passed twice with a three-roll mill to obtain a uniform solution.
- a general stirring device with a stirring blade
- a three-roll mill to obtain a uniform solution.
- the particle size was measured with a grindometer, all were 10 ⁇ m or less.
- the following evaluation was carried out by completely defoaming the foam in the solution with a defoaming device.
- the photosensitive resin composition is an area of 100 mm ⁇ 100 mm so that the final dry thickness becomes 20 ⁇ m on a 25 ⁇ m polyimide film (manufactured by Kaneka Corporation: trade name 25 NPI).
- the coated film was dried at 80 ° C. for 20 minutes to produce a solvent-dried coating film.
- the method for evaluating the tack-free property of the coating film is to cut out the film with the coating film after drying the solvent into 50 mm x 30 mm strips, and the coating film surfaces overlap each other with the coating film on the inside. After applying a load of 300 g for 3 seconds, the load was removed and the state when the coating film surface was peeled off was observed.
- ⁇ There is no sticking between the coating films, and no sticking marks remain on the coating film.
- X The coating films adhered completely and cannot be peeled off.
- the bent portion was opened, and a 5 kg load was again applied for 3 seconds, and then the load was removed to completely open the cured film laminated film.
- the above operation was repeated, and the number of occurrences of cracks in the bent portion was defined as the number of bending times.
- a cured film of a photosensitive resin composition having a thickness of 20 ⁇ m was prepared on a comb pattern by the same method as the above item ⁇ Preparation of a coating film on a polyimide film>, and a test piece was prepared.
- a 100 V direct current was applied to both terminals of the test piece in an environmental test machine at 85 ° C. and 85% RH, and changes in the insulation resistance value and occurrence of migration were observed.
- ⁇ A resistance value of 10 8 or more in 1000 hours after the start of the test, and no occurrence of migration or dendrite.
- X Migration, dendrite, etc. occurred in 1000 hours after the start of the test.
- (V) Solder heat resistance By a method similar to the above item ⁇ Preparation of coating film on polyimide film>, a photosensitive resin composition having a thickness of 20 ⁇ m is formed on the surface of a polyimide film having a thickness of 75 ⁇ m (Apical 75NPI manufactured by Kaneka Corporation). A cured film laminated film was produced. The obtained cured film laminated film was floated so that the surface coated with the cured film of the photosensitive resin composition was in contact with the solder bath completely dissolved at 260 ° C., and then pulled up 10 seconds later. The operation was performed three times, and the state of the film surface was observed. ⁇ : There is no abnormality in the coating film. X: Abnormality such as swelling or peeling occurs in the coating film.
- a laminated film was produced. The obtained cured film laminated film was cut into an area of 50 mm ⁇ 50 mm and placed on a smooth table so that the coating film was on the upper surface, and the warp height of the film edge was measured.
- a schematic diagram of the measurement site is shown in FIG. The smaller the amount of warpage on the polyimide film surface, the smaller the stress on the surface of the printed wiring board and the lower the amount of warping of the printed wiring board.
- the warp amount is preferably 5 mm or less. In addition, when rounding cylindrically, it was set as x.
- (Viii) Elongation A cured film laminated copper foil of a photosensitive resin composition having a thickness of 40 ⁇ m is prepared on the surface of an electrolytic copper foil having a thickness of 12.5 ⁇ m by the same method as described above in ⁇ Preparation of coating film on polyimide film>. did.
- the cured film laminated copper foil of the obtained photosensitive resin composition was etched out using a 40% aqueous solution of ferric chloride to produce a single-layer photosensitive resin composition cured film.
- a tensile test was performed according to JIS K 7127 to measure elongation.
- a mixed resin solution of ethyl carbitol acetate containing 58.6% of a photocurable resin having an acid value of 90 mgKOH / g. 90 g of the obtained resin solution (5.8 g of polymer fine particles as a solid content, 52.7 g of photocurable resin), 15.0 g of pentaerythritol tetraacrylate as a polyfunctional monomer, 20.0 g of ethyl carbitol acetate as a diluent, light 8.0 g of Irgacure 907 (product name manufactured by BASF Japan Ltd.) as the polymerization initiator, 20.0 g of phenol novolac type epoxy resin as the thermosetting resin, 2.0 g of dicyandiamide as the epoxy curing agent, and barium sulfate 30 as the filler 1.0 g, 1.2 g of product name Floren AC300 manufactured by Kyoeisha Chemical Co., Ltd.
- (E) component is not contained in the said photosensitive resin composition.
- the compounding quantity of (B) component is 11.0 weight part with respect to 100 weight part of photocurable resins containing a (meth) acryloyl group in a molecule
- Example B ⁇ (A) Binder polymer 1-5>
- the same binder polymer as (A) Binder polymers 1 to 5 used in Example 1 was used.
- the black photosensitive resin composition was first mixed with a general stirrer equipped with a stirring blade, and then passed twice with a three-roll mill to obtain a uniform solution.
- a grindometer When the particle size was measured with a grindometer, all were 10 ⁇ m or less.
- the following evaluation was carried out by completely defoaming the foam in the solution with a defoaming device.
- spray development was performed for 90 seconds at a discharge pressure of 1.0 kgf / mm 2 using a solution obtained by heating a 1.0 wt% sodium carbonate aqueous solution to 30 ° C.
- the film was sufficiently washed with pure water, and then cured by heating in an oven at 150 ° C. for 30 minutes to prepare a cured film of a black photosensitive resin composition on the polyimide film.
- the reaction was continued for about 16 hours until the acid value reached 3.0 KOHmg / g or less. I let you.
- the reaction solution was cooled to 80 to 90 ° C., charged with 76.0 g of tetrahydrophthalic anhydride and reacted for 8 hours to obtain a resin solution.
- a resin solution containing a photocurable resin was obtained.
- the resulting resin solution had a solid content concentration of 65% and an acid value of 78 KOH mg / g.
- the solid content concentration and the acid value were measured in the same manner as in Synthesis Example 1.
- the present invention can be used for resin films, insulating films, printed wiring boards with insulating films, and the like.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials For Photolithography (AREA)
- Ceramic Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
Description
以下本願発明について、(I)感光性樹脂組成物、(II)感光性樹脂組成物の使用方法の順に詳細に説明する。
本願発明の感光性樹脂組成物とは、少なくとも(A)バインダーポリマー、(B)架橋ポリマー粒子、(C)熱硬化性樹脂、(D)光重合開始剤、(E)リン系難燃剤を含有し、前記(B)架橋ポリマー粒子の配合量が、(A)バインダーポリマー100重量部に対して30~100重量部であり、前記(B)架橋ポリマー粒子の平均粒子径が、1~10μmであればよい。
本願発明の(A)バインダーポリマーとは、有機溶媒に対して可溶性であり、重量平均分子量が、ポリエチレングリコール換算で1,000以上、1,000,000以下のポリマーである。本願発明の(A)バインダーポリマーは単一の樹脂の場合もあり、また複数の樹脂からなる場合もある。ここで言う(A)バインダーポリマーとは、感光性樹脂組成物中に含まれる樹脂を含む総称である。
使用装置:東ソーHLC-8220GPC相当品
カラム :東ソー TSK gel Super AWM-H(6.0mmI.D.×15cm)×2本
ガードカラム:東ソー TSK guard column Super AW-H
溶離液 :30mM LiBr+20mM H3PO4 in DMF
流速 :0.6mL/min
カラム温度:40℃
検出条件:RI:ポラリティ(+)、レスポンス(0.5sec)
試料濃度:約5mg/mL
標準品 :PEG(ポリエチレングリコール)
上記範囲内に重量平均分子量を制御することにより、得られる硬化膜の柔軟性、耐薬品性が優れるため好ましい。重量平均分子量が1,000以下の場合は、柔軟性や耐薬品性が低下する場合があり、重量平均分子量が1,000,000以上の場合は感光性樹脂組成物の粘度が高くなる場合がある。
本願発明の分子内にウレタン結合を含有する樹脂とは、分子内に少なくとも1つのウレタン結合を含有する繰り返し単位を含有している、重量平均分子量が、ポリエチレングリコール換算で1,000以上、1,000,000以下のポリマーである。
性樹脂組成物の感光性に優れる点で好ましい。
で示されるイソシアネート基及び少なくとも1つの(メタ)アクリロイル基を含有する化
合物を反応させることにより得られる。
合、感光性樹脂組成物の感光性に優れる点で好ましい。
本願発明の分子内に(メタ)アクリロイル基を含有する樹脂とは、分子内に少なくとも1つの(メタ)アクリロイル基を含有している、重量平均分子量が、ポリエチレングリコール換算で1,000以上、1,000,000以下のポリマーである。ここで、(メタ)アクリロイル基とは、メタクリロイル基及び/又はアクリロイル基のことである。
本願発明の分子内に(メタ)アクリロイル基を実質的に含有しない樹脂とは、分子内に(メタ)アクリロイル基を実質的に含有しない、重量平均分子量が、ポリエチレングリコール換算で1,000以上、1,000,000以下のポリマーである。ここで、分子内に(メタ)アクリロイル基を実質的に含有しないとは、分子内に(メタ)アクリロイル基を全く含有しなくてもよいし、本願発明の効果の発現を損なわない範囲であれば含有していてもよい。本願発明の効果の発現を損なわない範囲とは、分子内の(メタ)アクリロイル基をヨウ素価として測定することにより定量した値が5未満である。ヨウ素価とは、試料100gにハロゲンを反応させたとき、結合するハロゲンの量をヨウ素のg数に換算した値であり、JIS K0070で規定された方法で測定することができる。
本願発明の(B)架橋ポリマー粒子とは、分子内に架橋構造を有している、平均粒子径が1~100μmの球状ポリマーである。ここで、球状とは、真球状であってもよいし、楕円状であってもよい。平均粒子径が1μm以下の場合は、感光性樹脂組成物の粘度やチクソ性が高くなり、塗工時の塗膜の発泡やレベリング不足による外観不良が発生する場合があり、更に表面凹凸形成効果が少なく塗膜乾燥後のベタツキが大きくタックフリー性に劣る場合がある。平均粒子径が100μm以上の場合は、微細パターン形成時の開口部に粒子が露出し、解像性不良になる場合がある。
使用装置:株式会社堀場製作所製LA-950V2相当品
測定方式:レーザー回折/散乱式
本願発明においては、(B)架橋ポリマー粒子の配合量が、(A)バインダーポリマー100重量部に対して30~100重量部であることが必須である。より好ましくは50重量部より多く100重量部以下である。
本願発明の(C)熱硬化性樹脂とは、分子内に少なくとも1つの熱硬化性の有機基を含有する化合物である。
本願発明の(D)光重合開始剤とは、UVなどのエネルギーによって活性化し、ラジカル重合性基の反応を開始・促進させる化合物である。
本願発明の(E)リン系難燃剤とは、分子内に少なくとも1つのリン元素を含有し、有機物の燃焼を抑制する効果を有する化合物である。なお、本願発明の(E)リン系難燃剤の形態は特に限定されず、フィラー型の難燃剤であってもよい。
本願発明の感光性樹脂組成物には、さらに必要に応じてラジカル重合性化合物、充填剤、接着助剤、消泡剤、レベリング剤、着色剤、重合禁止剤等の各種添加剤を加えることができる。
カルシウムなどの微細な無機充填剤が挙げられる。
本願発明の感光性樹脂組成物は、上記(A)~(E)成分及びその他成分を粉砕・分散させて混合し、得られることができる。粉砕・分散方法としては、特に限定されるものではないが、例えばビーズミル、ボールミル、3本ロール等の一般的な混練装置を用いて行われる。感光性樹脂組成物に含まれる粒子の粒子径はJIS K 5600-2-5で規定されたゲージを用いる方法で測定することができる。また粒度分布測定装置を使用すれば、平均粒子径、粒子径、粒度分布を測定することができる。
本願発明の感光性樹脂組成物を直接に用いて、又は、感光性樹脂組成物溶液を調製した後に、以下のようにして硬化膜又はレリーフパターンを形成することができる。先ず、上記感光性樹脂組成物、又は、感光性樹脂組成物溶液を基板に塗布し、乾燥して有機溶媒を除去する。基板への塗布はスクリ-ン印刷、カ-テンロ-ル、リバ-スロ-ル、スプレーコーティング、スピンナーを利用した回転塗布等により行うことができる。塗布膜(好ましくは厚み:5~100μm、特に10~100μm)の乾燥は120℃以下、好ましくは40~100℃で行う。
し乾燥して得られた樹脂フィルムを用いても同様の絶縁材料を提供することができる。
本発明の感光性樹脂組成物は、以下のように構成することも可能である。
(A4)分子内にラジカル重合性基を実質的に含有せず、かつウレタン結合及びカルボキシル基を含有する樹脂とは、分子内にラジカル重合性基を実質的に含有せず、少なくとも1つのウレタン結合を含有する繰り返し単位及び少なくとも1つのカルボキシル基を含有する繰り返し単位を含有している、重量平均分子量が、ポリエチレングリコール換算で、1,000以上1,000,000以下のポリマーである。
使用装置 :東ソーHLC-8220GPC相当品
カラム :東ソー TSK gel Super AWM-H(6.0mmI.D.×15cm)×2本
ガードカラム:東ソー TSK guard column Super AW-H
溶離液:30mM LiBr+20mM H3PO4 in DMF
流速:0.6mL/min
カラム温度:40℃
検出条件 :RI:ポラリティ(+)、レスポンス(0.5sec)
試料濃度 :約5mg/mL
標準品 :PEG(ポリエチレングリコール)
上記範囲内に重量平均分子量を制御することにより、感光性樹脂組成物のアルカリ現像性、得られる硬化膜の柔軟性、耐薬品性が優れるため好ましい。重量平均分子量が1,000以下の場合は、柔軟性や耐薬品性が低下する場合があり、重量平均分子量が1,000,000以上の場合は感光性樹脂組成物のアルカリ現像性が低下し、粘度が高くなる場合がある。
一般式(9)
性樹脂組成物の感光性に優れる点で好ましい。
(A5)分子内にラジカル重合性基を含有し、かつウレタン結合を含有する樹脂とは、少なくとも1つのラジカル重合開始剤により重合反応が進行するラジカル重合性基及びウレタン結合を含有している重量平均分子量が、ポリエチレングリコール換算で、1,000以上100,000以下のポリマーである。
本実施の形態の感光性樹脂組成物では、(E)リン系難燃剤が有機溶媒に実質的に溶解しない難燃剤であり、かつ、当該感光性樹脂組成物が、更に(F)有機溶媒を含有することも可能である。
本実施の形態の感光性樹脂組成物は、(G)着色剤を含有することも可能である。
以下本発明を実施例により具体的に説明するが本発明はこれらの実施例により限定されるものではない。
<(A)バインダーポリマー1>
攪拌機、温度計、滴下漏斗、及び窒素導入管を備えた反応容器に、重合用溶媒としてメチルトリグライム(=1,2-ビス(2-メトキシエトキシ)エタン)100.0gを仕込み、窒素気流下で攪拌しながら80℃まで昇温した。これに、室温で予め混合しておいた、メタクリル酸12.0g(0.14モル)、メタクリル酸ベンジル28.0g(0.16モル)、メタクリル酸ブチル60.0g(0.42モル)、ラジカル重合開始剤としてアゾビスイソブチロニトリル0.5gを80℃に保温した状態で3時間かけて滴下漏斗から滴下した。滴下終了後、反応溶液を攪拌しながら90℃まで昇温し、反応溶液の温度を90℃に保ちながら更に2時間攪拌を行い反応させた。上記反応を行うことで分子内に(メタ)アクリロイル基を実質的に含有しない樹脂溶液を得た。得られた樹脂溶液の固形分濃度は50%、重量平均分子量は48,000、固形分の酸価は78mgKOH/gであった。尚、固形分濃度、重量平均分子量、酸価は下記の方法で測定した。
JIS K 5601-1-2に従って測定を行った。尚、乾燥条件は170℃×1時間の条件を選択した。
下記条件で測定を行った。
使用装置 :東ソーHLC-8220GPC相当品
カラム :東ソー TSK gel Super AWM-H(6.0mmI.D.×15cm)×2本
ガードカラム:東ソー TSK guard column Super AW-H
溶離液 :30mM LiBr+20mM H3PO4 in DMF
流速 :0.6mL/min
カラム温度 :40℃
検出条件 :RI:ポラリティ(+)、レスポンス(0.5sec)
試料濃度 :約5mg/mL
標準品 :PEG(ポリエチレングリコール)
<酸価>
JIS K 5601-2-1に従って測定を行った。
<(A)バインダーポリマー2>
攪拌機、温度計、及び窒素導入管を備えた反応容器に、重合用溶媒としてメチルトリグライム(=1,2-ビス(2-メトキシエトキシ)エタン)30.00gを仕込み、これに、ノルボルネンジイソシアネート10.31g(0.050モル)を仕込み、窒素気流下で攪拌しながら80℃に加温して溶解させた。この溶液に、ポリカーボネートジオール50.00g(0.025モル)(旭化成株式会社製、製品名PCDL T5652、重量平均分子量2000)及び2-ヒドロキシエチルメタクリレート6.51g(0.050モル)をメチルトリグライム30.00gに溶解した溶液を1時間かけて添加した。この溶液を5時間80℃で加熱攪拌を行い反応させた。上記反応を行うことで分子内にウレタン結合及びメタクリロイル基を含有する樹脂溶液を得た。得られた樹脂溶液の固形分濃度は53%、重量平均分子量は5,200であった。尚、固形分濃度、重量平均分子量は合成例1と同様の方法で測定した。
<(A)バインダーポリマー3>
攪拌機、温度計、及び窒素導入管を備えた反応容器に、重合用溶媒としてメチルトリグライム(=1,2-ビス(2-メトキシエトキシ)エタン)30.00gを仕込み、これに、ノルボルネンジイソシアネート10.31g(0.050モル)を仕込み、窒素気流下で攪拌しながら80℃に加温して溶解させた。この溶液に、ポリカーボネートジオール50.00g(0.025モル)(旭化成株式会社製、製品名PCDL T5652、重量平均分子量2000)及び2,2-ビス(ヒドロキシメチル)ブタン酸3.70g(0.025モル)をメチルトリグライム30.00gに溶解した溶液を1時間かけて添加した。この溶液を5時間80℃で加熱攪拌を行い反応させた。上記反応を行うことで分子内にウレタン結合及びカルボキシル基を含有する樹脂溶液を得た。得られた樹脂溶液の固形分濃度は52%、重量平均分子量は5,600、固形分の酸価は22mgKOH/gであった。尚、固形分濃度、重量平均分子量、酸価は合成例1と同様の方法で測定した。
<(A)バインダーポリマー4>
攪拌機、温度計、及び窒素導入管を備えた反応容器に、重合用溶媒としてメチルトリグライム(=1,2-ビス(2-メトキシエトキシ)エタン)40.00gを仕込み、これに、ノルボルネンジイソシアネート20.62g(0.100モル)を仕込み、窒素気流下で攪拌しながら80℃に加温して溶解させた。この溶液に、ポリカーボネートジオール50.00g(0.025モル)(旭化成株式会社製、製品名PCDL T5652、重量平均分子量2000)、2,2-ビス(ヒドロキシメチル)ブタン酸3.70g(0.025モル)及び2-ヒドロキシエチルメタクリレート13.02g(0.100モル)をメチルトリグライム40.00gに溶解した溶液を1時間かけて添加した。この溶液を5時間80℃で加熱攪拌を行い反応させた。上記反応を行うことで分子内にウレタン結合、カルボキシル基及び(メタ)アクリロイル基を含有する樹脂溶液を得た。得られた樹脂溶液の固形分濃度は52%、重量平均分子量は8,600、固形分の酸価は18mgKOH/gであった。尚、固形分濃度、重量平均分子量、酸価は合成例1と同様の方法で測定した。
<(A)バインダーポリマー5>
攪拌機、温度計、及び窒素導入管を備えた反応容器に、重合用溶媒としてメチルトリグライム(=1,2-ビス(2-メトキシエトキシ)エタン)35.00gを仕込み、これに、ノルボルネンジイソシアネート10.31g(0.050モル)を仕込み、窒素気流下で攪拌しながら80℃に加温して溶解させた。この溶液に、ポリカーボネートジオール50.00g(0.025モル)(旭化成株式会社製、製品名PCDL T5652、重量平均分子量2000)をメチルトリグライム35.00gに溶解した溶液を1時間かけて添加した。この溶液を2時間80℃で加熱攪拌を行った。反応終了後、3,3’,4,4’-オキシジフタル酸二無水物(以下、ODPA)15.51g(0.050モル)を前述の反応溶液に添加した。添加後に190℃に加温して1時間反応させた。この溶液を80℃まで冷却し純水3.60g(0.200モル)を添加した。添加後に110℃まで昇温し5時間加熱還流した。上記反応を行うことで分子内にウレタン結合、カルボキシル基及びイミド基を含有する樹脂溶液を得た。得られた樹脂溶液の固形分濃度は53%、重量平均分子量は9,200、固形分の酸価は86mgKOH/gであった。尚、固形分濃度、重量平均分子量、酸価は合成例1と同様の方法で測定した。
<感光性樹脂組成物の調製>
合成例で得られた(A)バインダーポリマー、(B)架橋ポリマー粒子、(C)熱硬化性樹脂、(D)光重合開始剤、(E)リン系難燃剤、その他成分、及び有機溶媒を添加して感光性樹脂組成物を作製した。それぞれの構成原料の樹脂固形分での配合量及び原料の種類を表1に記載する。なお、表中の溶媒である1,2-ビス(2-メトキシエトキシ)エタンは上記合成した樹脂溶液に含まれる溶剤も含めた全溶剤量である。感光性樹脂組成物ははじめに一般的な攪拌翼のついた攪拌装置で混合し、その後3本ロールミルで2回パスし均一な溶液とした。グラインドメーターにて粒子径を測定したところ、いずれも10μm以下であった。混合溶液を脱泡装置で溶液中の泡を完全に脱泡して下記評価を実施した。
品名、平均粒子径7μm
<2>ガンツ化成株式会社製 架橋ポリメタクリル酸ブチル系架橋ポリマー粒子の製品名、平均粒子径5μm
<3>日産化学株式会社製 多官能エポキシ樹脂(トリグリシジルイソシアヌレート)の製品名
<4>BASFジャパン株式会社製 光重合開始剤の製品名
<5>クラリアントジャパン株式会社製 ホスフィン酸塩の製品名
<6>日立化成工業株式会社製 EO変性ビスフェノールAジメタクリレートの製品名
<7>共栄社化学株式会社製 ブタジエン系消泡剤の製品名
<ポリイミドフィルム上への塗膜の作製>
上記感光性樹脂組成物を、ベーカー式アプリケーターを用いて、25μmのポリイミドフィルム(株式会社カネカ製:商品名25NPI)に最終乾燥厚みが20μmになるように100mm×100mmの面積に流延・塗布し、80℃で20分乾燥した後、300mJ/cm2の積算露光量の紫外線を照射して露光した。次いで、1.0重量%の炭酸ナトリウム水溶液を30℃に加熱した溶液を用いて、1.0kgf/mm2の吐出圧で90秒スプレー現像を行った。現像後、純水で十分洗浄した後、150℃のオーブン中で30分加熱硬化させてポリイミドフィルム上に感光性樹脂組成物の硬化膜を作製した。
以下の項目につき評価を行った。評価結果を表2に記載する。
上記<ポリイミドフィルム上への塗膜の作製>の項目と同様の方法で得られた硬化膜の表面観察を行い判定した。ただし、露光は、ライン幅/スペース幅=100μm/100μmのネガ型フォトマスクを置いて露光した。
〇:ポリイミドフィルム表面に顕著な線太りや現像残渣無くライン幅/スペース幅=100/100μmの感光パターンが描けているもの。
×:ポリイミドフィルム表面にライン幅/スペース幅=100/100μmの感光パターンが描けていないもの。
上記感光性樹脂組成物を、ベーカー式アプリケーターを用いて、25μmのポリイミドフィルム(株式会社カネカ製:商品名25NPI)に最終乾燥厚みが20μmになるように100mm×100mmの面積に流延・塗布し、80℃で20分乾燥して溶媒乾燥後の塗膜を作製した。塗膜のタックフリー性の評価方法は、作製した溶媒乾燥後の塗膜付きフィルムを50mm×30mmの短冊に切り出して、塗膜を内側にして塗膜面同士を重ね合わせ、重ね合わせた部分に300gの荷重を3秒間のせた後、荷重を取り除き、塗膜面を引き剥がした時の状態を観察した。
○:塗膜同士の貼り付きがなく、塗膜に貼り付き跡も残っていない。
△:塗膜同士が少し貼り付き、塗膜に貼り付き跡が残っている。
×:塗膜同士が完全に貼り付いて引き剥がせない。
上記<ポリイミドフィルム上への塗膜の作製>の項目と同様の方法で、25μm厚みのポリイミドフィルム(株式会社カネカ製アピカル25NPI)表面に20μm厚みの感光性樹脂組成物の硬化膜積層フィルムを作製した。硬化膜積層フィルムの耐折れ性の評価方法は、硬化膜積層フィルムを50mm×10mmの短冊に切り出して、硬化膜を外側にして25mmのところで180°に折り曲げ、折り曲げ部に5kgの荷重を3秒間のせた後、荷重を取り除き、折り曲げ部の頂点を顕微鏡で観察した。顕微鏡観察後、折り曲げ部を開いて、再度5kgの荷重を3秒間乗せた後、荷重を取り除き完全に硬化膜積層フィルムを開いた。上記操作を繰り返し、折り曲げ部にクラックが発生する回数を折り曲げ回数とした。
○:折り曲げ回数5回で硬化膜にクラックが無いもの。
△:折り曲げ回数3回で硬化膜にクラックが無いもの。
×:折り曲げ1回目に硬化膜にクラックが発生するもの。
フレキシブル銅貼り積層版(電解銅箔の厚み12μm、ポリイミドフィルムは株式会社カネカ製アピカル25NPI、ポリイミド系接着剤で銅箔を接着している)上にライン幅/スペース幅=100μm/100μmの櫛形パターンを作製し、10容量%の硫酸水溶液中に1分間浸漬した後、純水で洗浄し銅箔の表面処理を行った。その後、上記<ポリイミドフィルム上への塗膜の作製>の項目と同様の方法で櫛形パターン上に20μm厚みの感光性樹脂組成物の硬化膜を作製し試験片の作製を行った。85℃、85%RHの環境試験機中で試験片の両端子部分に100Vの直流電流を印加し、絶縁抵抗値の変化やマイグレーションの発生などを観察した。
○:試験開始後、1000時間で10の8乗以上の抵抗値を示し、マイグレーション、デンドライトなどの発生が無いもの。
×:試験開始後、1000時間でマイグレーション、デンドライトなどの発生があるもの。
上記<ポリイミドフィルム上への塗膜の作製>の項目と同様の方法で、75μm厚みのポリイミドフィルム(株式会社カネカ製アピカル75NPI)表面に20μm厚みの感光性樹脂組成物の硬化膜積層フィルムを作製した。
得られた硬化膜積層フィルムを260℃で完全に溶解してある半田浴に感光性樹脂組成物
の硬化膜が塗工してある面が接する様に浮かべて10秒後に引き上げた。その操作を3回
行い、フィルム表面の状態を観察した。
○:塗膜に異常がない。
×:塗膜に膨れや剥がれなどの異常が発生する。
上記<ポリイミドフィルム上への塗膜の作製>の項目と同様の方法で、25μm厚みのポリイミドフィルム(株式会社カネカ製アピカル25NPI)表面に20μm厚みの感光性樹脂組成物の硬化膜積層フィルムを作製した。
得られた硬化膜積層フィルムを50mm×50mmの面積に切り出して平滑な台の上に塗布膜が上面になるように置き、フィルム端部の反り高さを測定した。測定部位の模式図を図1に示す。ポリイミドフィルム表面での反り量が少ない程、プリント配線板表面での応力が小さくなり、プリント配線板の反り量も低下することになる。反り量は5mm以下であることが好ましい。尚、筒状に丸まる場合は×とした。
プラスチック材料の燃焼性試験規格UL94VTMに従い、以下のように燃焼性試験を行った。上記<ポリイミドフィルム上への塗膜の作製>の項目と同様の方法で、25μm厚みのポリイミドフィルム(株式会社カネカ製:商品名アピカル25NPI)両面に20μm厚みの感光性樹脂組成物硬化膜積層フィルムを作製した。上記作製したサンプルを寸法:50mm幅×200mm長さ×75μm厚み(ポリイミドフィルムの厚みを含む)に切り出し、125mmの部分に標線を入れ、直径約13mmの筒状に丸め、標線よりも上の重ね合わせ部分(75mmの箇所)、及び、上部に隙間がないようにPIテープを貼り、燃焼性試験用の筒を20本用意した。そのうち10本は(1)23℃/50%相対湿度/48時間で処理し、残りの10本は(2)70℃で168時間処理後無水塩化カルシウム入りデシケーターで4時間以上冷却した。これらのサンプルの上部をクランプで止めて垂直に固定し、サンプル下部にバーナーの炎を3秒間近づけて着火する。3秒間経過したらバーナーの炎を遠ざけて、サンプルの炎や燃焼が何秒後に消えるか測定する。
○:各条件((1)、(2))につき、サンプルからバーナーの炎を遠ざけてから平均(10本の平均)で10秒以内、最高で10秒以内に炎や燃焼が停止し自己消火し、かつ、評線まで燃焼が達していないもの。
×:1本でも10秒以内に消火しないサンプルがあったり、炎が評線以上のところまで上昇して燃焼するもの。
上記<ポリイミドフィルム上への塗膜の作製>の項目と同様の方法で、12.5μm厚みの電解銅箔表面に40μm厚みの感光性樹脂組成物の硬化膜積層銅箔を作製した。得られた感光性樹脂組成物の硬化膜積層銅箔の銅箔を塩化第二鉄40%水溶液を用いてエッチアウトし、単層の感光性樹脂組成物硬化膜を作製した。得られた硬化膜を用いて、JIS K 7127に従って引張り試験を行い伸びの測定を行った。
上記(viii)伸びの項目と同様の方法で単層の感光性樹脂組成物硬化膜を作製した。得られた硬化膜を用いて、JIS K 7127に従って引張り試験を行い弾性率の測定を行った。
攪拌機、温度計、冷却管及び空気導入管付き反応容器に空気を導入させた後、ポリカーボネートジオール(ダイセル化学工業株式会社製、製品名プラクセルCD205PL、数平均分子量:500)196.80g(0.39mol)、2,2-ビス(ヒドロキシメチル)ブタン酸58.30(0.39mol)g、ジエチレングリコール37.60g(0.35mol)、1,4-シクロヘキサンジメタノールモノアクリレート148.10g(0.75mol)g、p-メトキシフェノール0.55g、ジブチル錫ジラウレート0.55g、メチルエチルケトン110.20gを仕込み、空気気流下で65℃まで均一撹拌しながら昇温した。滴下容器にトリメチルヘキサメチレンジイソシアネート305.90g(1.46mol)を仕込み、65℃で均一攪拌しながら3時間かけて反応容器に滴下した。滴下終了後、滴下容器をメチルエチルケトン76.50gを用いて洗浄し、洗浄後の溶液は反応容器にそのまま投入した。さらに均一撹拌しながら2時間保温した後、75℃に昇温し、5時間均一攪拌を行った。次いで、反応容器内にメタノール9.30gを添加し、60℃で30分均一攪拌を行った。その後メチルエチルケトンを56.40g添加し、透明な樹脂溶液を得た。上記反応を行うことで分子内にウレタン結合及びメタクリロイル基を含有する樹脂溶液を得た。得られた樹脂溶液の固形分濃度は75%、重量平均分子量は14,800であった。尚、固形分濃度、重量平均分子量は合成例1と同様の方法で測定した。得られた樹脂溶液を66.7g(固形分として50g)、ラジカル重合性化合物として2,2’-ビス(4-メタクリロキシペンタエトキシフェニル)プロパン30g、バインダー樹脂としてメタクリル酸、メタクリル酸メチル及びアクリル酸ブチルを重量比22:71:7の割合で共重合させた樹脂溶液(重量平均分子量80,000、固形分の酸価143mgKOH/g、メチルセルソルブ/トルエン=6/4(重量比)に固形分濃度40%になるように溶解させた溶液)を162.5g(固形分として65g)、光重合開始剤としてベンゾフェノン3.5g及びN,N’-テトラエチル-4,4’-ジアミノベンゾフェノン0.1g、熱硬化性樹脂としてイソシアヌレート型ヘキサメチレンジイソシアネート系イソシアネート化合物とブロック剤としてメチルエチルケトンオキシムを反応させて得られるブロック化イソシアネート化合物の75%メチルエチルケトン溶液20g(固形分として15g)、リン系難燃剤としてCR-747(大八化学工業株式会社製の製品名)40g、希釈剤としてアセトン85gを配合・攪拌して3本ロールミルにて分散させて感光性樹脂組成物とした。この感光性樹脂組成物を実施例1と同様の方法で物性評価を行った。その結果を表2に記載する。尚、上記感光性樹脂組成物には、(B)成分が含まれない。
クレゾールノボラック型エポキシ樹脂YDCN-703(東都化成株式会社製、エポキシ当量200)100.00gに、カルビトールアセテート80.00gを加え、撹拌下120℃で加熱溶解させた。60℃まで冷却した後、(メタ)アクリル酸エステル系ポリマー微粒子のエマルション(ガラス転移温度-8℃、固形分46.0%)43.48g(固形分として20.00g)を加え、撹拌下で130℃まで昇温し、水を完全に除去した。次いで、アクリル酸36.90g、塩化第二クロム六水和物0.14gおよびメチルハイドロキノン0.11gを加え、110℃で3時間反応させた。反応物の酸価が3.0mgKOH/gになり、アクリロイル基の導入が確認された。次に、テトラヒドロ無水フタル酸45.60g、エチルカルビトールアセテート29.00gおよび無水塩化リチウム0.14gを加え、100℃で3時間反応させて、(メタ)アクリル酸エステル系ポリマー微粒子を6.4%と、酸価90mgKOH/gの光硬化性樹脂を58.6%含むエチルカルビトールアセテートとの混合樹脂溶液を得た。得られた樹脂溶液を90g(固形分としてポリマー微粒子5.8g、光硬化性樹脂52.7g)、多官能モノマーとしてペンタエリスリトールテトラアクリレート15.0g、希釈剤としてエチルカルビトールアセテート20.0g、光重合開始剤としてイルガキュア907(BASFジャパン株式会社製の製品名)を8.0g、熱硬化性樹脂としてフェノールノボラック型エポキシ樹脂20.0g、エポキシ硬化剤としてジシアンジアミド2.0g、充填剤として硫酸バリウム30.0g、消泡剤として共栄社化学株式会社製の製品名フローレンAC300を1.2g、顔料としてフタロシアニングリーン0.6gを配合・攪拌して3本ロールにて分散させて感光性樹脂組成物とした。この感光性樹脂組成物を実施例1と同様の方法で物性評価を行った。その結果を表2に記載する。尚、上記感光性樹脂組成物には、(E)成分が含まれない。また、(B)成分の配合量は、分子内に(メタ)アクリロイル基を含有する光硬化性樹脂100重量部に対して11.0重量部である。
実施例3で用いたダイミックビーズUCN-8070CMクリヤーに代えて、コアシェル多層構造を持つ架橋ポリマー微粒子(ガンツ化成株式会社製、商品名スタフィロイドAC-3816、平均粒子径0.5μm)を用いて実施例1と同様の方法で物性評価を行った。その結果を表2に記載する。
<(A)バインダーポリマー1~5>
本実施例Bでは、実施例1で用いた(A)バインダーポリマー1~5と同じバインダーポリマーを用いた。(A)バインダーポリマー1~5の合成方法については既に説明したので、ここではその説明を省略する。
<感光性樹脂組成物(黒色)の調製>
(A)バインダーポリマー、(B)架橋ポリマー粒子、(C)熱硬化性樹脂、(D)光重合開始剤、(E)リン系難燃剤、(G)着色剤(黒色)、その他成分、及び有機溶媒を添加して黒色感光性樹脂組成物を作製した。それぞれの構成原料の樹脂固形分での配合量及び原料の種類を表3に記載する。なお、表中の溶媒である1,2-ビス(2-メトキシエトキシ)エタンは上記合成した樹脂溶液に含まれる溶剤も含めた全溶剤量である。黒色感光性樹脂組成物は、はじめに一般的な攪拌翼のついた攪拌装置で混合し、その後3本ロールミルで2回パスし均一な溶液とした。グラインドメーターにて粒子径を測定したところ、いずれも10μm以下であった。混合溶液を脱泡装置で溶液中の泡を完全に脱泡して下記評価を実施した。
<2>ガンツ化成株式会社製 架橋ポリメタクリル酸ブチル系架橋ポリマー粒子の製品名、平均粒子径5μm
<3>日産化学株式会社製 多官能エポキシ樹脂(トリグリシジルイソシアヌレート)の製品名
<4>BASFジャパン株式会社製 オキシムエステル系光重合開始剤の製品名
<5>クラリアントジャパン株式会社製 リン系難燃剤(ジエチルホスフィン酸アルミニ
ウム塩)の製品名、平均粒子径2.5μm
<6>三菱化学株式会社製 黒色着色剤(カーボンブラック)の製品名
<7>日立化成工業株式会社製 EO変性ビスフェノールAジメタクリレートの製品名
<8>共栄社化学株式会社製 ブタジエン系消泡剤の製品名
<ポリイミドフィルム上への塗膜の作製>
上記黒色感光性樹脂組成物を、ベーカー式アプリケーターを用いて、25μmのポリイミドフィルム(株式会社カネカ製:商品名25NPI)に最終乾燥厚みが20μmになるように100mm×100mmの面積に流延・塗布し、80℃で20分乾燥した後、300mJ/cm2の積算露光量の紫外線を照射して露光した。次いで、1.0重量%の炭酸ナトリウム水溶液を30℃に加熱した溶液を用いて、1.0kgf/mm2の吐出圧で90秒スプレー現像を行った。現像後、純水で十分洗浄した後、150℃のオーブン中で30分加熱硬化させてポリイミドフィルム上に黒色感光性樹脂組成物の硬化膜を作製した。
(i)感光性、(ii)タックフリー性、(iii)耐折れ性、(iv)電気絶縁信頼性、(v)半田耐熱性、(vi)反り、(vii)難燃性、および、(viii)隠蔽性につき評価を行った。評価結果を表4に記載する。
1mm角のマス目を有する方眼紙の上に上記(vi)反りの項目で得られた試験片を置き、目視にて試験片の上からマス目を確認する方法で隠蔽性の評価を行った。
○:マス目が見えないもの。
×:マス目が見えるもの。
攪拌機、温度計、冷却管及び空気導入管付き反応容器に空気を導入させた後、クレゾールノボラック型エポキシ樹脂(DIC株式会社製、製品名エピクロンN-680、エポキシ当量210)210.0g、カルビトールアセテート96.4gを仕込み、加熱溶解した。次いで、重合禁止剤としてハイドロキノン0.46g、反応触媒としてトリフェニルホスフィン1.38gを仕込み、空気気流下で95℃まで均一撹拌しながら昇温した。次いで、滴下容器にアクリル酸72.0gを仕込み、95~105℃に加熱しながら反応容器にアクリル酸を滴下し、滴下終了後、酸価が3.0KOHmg/g以下になるまで約16時間反応させた。次いで、反応溶液を80~90℃まで冷却し、テトラヒドロフタル酸無水物76.0gを仕込み、8時間反応させ樹脂溶液を得た。上記反応を行うことで光硬化性樹脂を含有する樹脂溶液を得た。得られた樹脂溶液の固形分濃度は65%、酸価は78KOHmg/gであった。尚、固形分濃度、酸価は合成例1と同様の方法で測定した。得られた樹脂溶液を154g(固形分として100g)、ラジカル重合性化合物としてジペンタエリスリトールヘキサアクリレート18g、光重合開始剤として2-メチル-1-[4-(メチルチオ)フェニル]-2-モルフォリノ-プロパン-1-オン(BASFジャパン株式会社製、製品名イルガキュア907)15g、2,4-ジエチルチオキサントン1g、及び4,4’-ビス(ジメチルアミノ)ベンゾフェノン0.1g、多官能エポキシ樹脂としてビスフェノールAジグリシジルエーテル25g及びトリグリシジルイソシアヌレート15g、カーボンブラック(三菱化学株式会社製、製品名カーボンブラックM-50)2.2g、硬化触媒としてメラミン5g、シリコーン系消泡剤3g、有機ベントナイト3g、硫酸バリウム140g、及びジエチレングリコールモノエチルエーテルアセテート18gを配合・攪拌して3本ロールミルにて分散させて黒色感光性樹脂組成物とした。この黒色感光性樹脂組成物を実施例7と同様の方法で物性評価を行った。その結果を表4に記載する。尚、上記黒色感光性樹脂組成物には、(B)成分、(E)成分が含まれない。
バインダーポリマーとしてメタクリル酸、メタクリル酸メチル及びアクリル酸ブチルを重量比17:62:21の割合で共重合させた樹脂溶液(重量平均分子量110,000、固形分の酸価110mgKOH/g、メチルセルソルブ/トルエン=6/4(重量比)に固形分濃度40%になるように溶解させた溶液)を150g(固形分として60g)、ウレタン結合を含有する樹脂としてウレタン変性エポキシアクリレート樹脂(日本化薬株式会社製、製品名KAYARAD UXE-3024、固形分濃度65%、重量平均分子量10,000、固形分の酸価60mgKOH/g)を15.4g(固形分として10g)及びウレタン・不飽和オリゴマー(末端にヒドロキシル基を有するポリカーボネート化合物3モルと、イソホロンジイソシアネート4モルと、2-ヒドロキシエチルアクリレート2モルを反応させて得られた光重合化合物)を固形分として45g、黒色顔料としてカーボンブラックを1.5g、ラジカル重合性化合物としてビスフェノールA骨格エチレンオキサイド変性ジメタクリレートを30g、光重合開始剤として2-ベンジル-2-ジメチルアミノ-1-(4-モルフォリノフェニル)-ブタノン-1(BASFジャパン株式会社製、製品名イルガキュア369)を2.5g、熱硬化性樹脂としてメラミン誘導体を17g、その他成分としてメチルエチルケトン45g、トルエン20gを配合・攪拌して3本ロールミルにて分散させて黒色感光性樹脂組成物とした。この黒色感光性樹脂組成物を実施例7と同様の方法で物性評価を行った。その結果を表4に記載する。尚、上記黒色感光性樹脂組成物には、(B)成分、(E)成分が含まれない。
クレゾールノボラック型エポキシ樹脂YDCN-703(東都化成株式会社製、エポキシ当量200)100.00gに、カルビトールアセテート80.00gを加え、撹拌下120℃で加熱溶解させた。60℃まで冷却した後、(メタ)アクリル酸エステル系ポリマー微粒子のエマルション(ガラス転移温度-8℃、固形分46.0%)43.48g(固形分として20.00g)を加え、撹拌下で130℃まで昇温し、水を完全に除去した。次いで、アクリル酸36.90g、塩化第二クロム六水和物0.14gおよびメチルハイドロキノン0.11gを加え、110℃で3時間反応させた。反応物の酸価が3.0mgKOH/gになり、アクリロイル基の導入が確認された。次に、テトラヒドロ無水フタル酸45.60g、エチルカルビトールアセテート29.00gおよび無水塩化リチウム0.14gを加え、100℃で3時間反応させて、(メタ)アクリル酸エステル系ポリマー微粒子を6.4%と、酸価90mgKOH/gの光硬化性樹脂を58.6%含むエチルカルビトールアセテートとの混合樹脂溶液を得た。得られた樹脂溶液を90g (固形分としてポリマー微粒子5.8g、光硬化性樹脂52.7g)、多官能モノマーとしてペンタエリスリトールテトラアクリレート15.0g、希釈剤としてエチルカルビトールアセテート20.0g、光重合開始剤としてイルガキュア907(BASFジャパン株式会社製の製品名)を8.0g、熱硬化性樹脂としてフェノールノボラック型エポキシ樹脂20.0g、エポキシ硬化剤としてジシアンジアミド2.0g、充填剤として硫酸バリウム30.0g、消泡剤として共栄社化学株式会社製の製品名フローレンAC300を1.2g、顔料としてフタロシアニングリーン0.6gを配合・攪拌して3本ロールにて分散させて感光性樹脂組成物とした。この感光性樹脂組成物を実施例7と同様の方法で物性評価を行った。その結果を表4に記載する。尚、上記感光性樹脂組成物には、(E)成分、(G)成分が含まれない。
2 反り量
3 平滑な台
Claims (18)
- 少なくとも
(A)バインダーポリマー、
(B)架橋ポリマー粒子、
(C)熱硬化性樹脂、
(D)光重合開始剤、
(E)リン系難燃剤
を含有し、前記(B)架橋ポリマー粒子の配合量が、(A)バインダーポリマー100重量部に対して30~100重量部であり、前記(B)架橋ポリマー粒子の平均粒子径が、1~10μmであることを特徴とする感光性樹脂組成物。 - 前記(A)バインダーポリマーが、(A1)分子内にウレタン結合を含有する樹脂を含有することを特徴とする請求項1に記載の感光性樹脂組成物。
- 前記(A)バインダーポリマーが、(A2)分子内に(メタ)アクリロイル基を含有する樹脂を含有することを特徴とする請求項1または2に記載の感光性樹脂組成物。
- 前記(B)架橋ポリマー粒子の配合量が、前記(A2)分子内に(メタ)アクリロイル基を含有する樹脂100重量部に対して50重量部より多く500重量部以下であることを特徴とする請求項3に記載の感光性樹脂組成物。
- 前記(A)バインダーポリマーが、(A3)分子内に(メタ)アクリロイル基を実質的に含有しない樹脂を含有することを特徴とする請求項1~4のいずれか1項に記載の感光性樹脂組成物。
- 前記(B)架橋ポリマー粒子が、分子内にウレタン結合を含有する架橋ポリマー粒子であることを特徴とする請求項1~5のいずれか1項に記載の感光性樹脂組成物。
- 前記(E)リン系難燃剤が、ホスフィン酸塩であることを特徴とする請求項1~6のいずれか1項に記載の感光性樹脂組成物。
- 前記(E)リン系難燃剤の配合量が、(A)バインダーポリマー100重量部に対して5~100重量部であることを特徴とする請求項1~7のいずれか1項に記載の感光性樹脂組成物。
- 前記(B)架橋ポリマー粒子の配合量が、(A)バインダーポリマー100重量部に対して50重量部より多く100重量部以下であることを特徴とする請求項1~8のいずれか1項に記載の感光性樹脂組成物。
- 前記(A)バインダーポリマーが、(A4)分子内にラジカル重合性基を実質的に含有せず、かつウレタン結合及びカルボキシル基を含有する樹脂、および、(A5)分子内にラジカル重合性基を含有し、かつウレタン結合を含有する樹脂、を含有することを特徴とする請求項1~9のいずれか1項に記載の感光性樹脂組成物。
- 更に(F)有機溶媒を含有し、
前記(E)リン系難燃剤が、有機溶媒に実質的に溶解しない難燃剤であることを特徴とする請求項1~10のいずれか1項に記載の感光性樹脂組成物。 - 更に(G)着色剤を含有することを特徴とする請求項1~11のいずれか1項に記載の感光性樹脂組成物。
- 少なくとも請求項1~12のいずれか1項に記載の感光性樹脂組成物を基材表面に塗布した後、乾燥して得られた樹脂フィルム。
- 請求項13に記載の樹脂フィルムを硬化させて得られる絶縁膜。
- 請求項14に記載の絶縁膜がプリント配線板に被覆された絶縁膜付きプリント配線板。
- 請求項1~12のいずれか1項に記載の感光性樹脂組成物から得られることを特徴とする樹脂フィルム。
- 請求項1~12のいずれか1項に記載の感光性樹脂組成物から得られることを特徴とする絶縁膜。
- 請求項17に記載の絶縁膜がプリント配線板に被覆されている、絶縁膜付きプリント配線板。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013512374A JP6134264B2 (ja) | 2011-04-25 | 2012-04-24 | 新規な感光性樹脂組成物及びその利用 |
KR1020137028349A KR101878802B1 (ko) | 2011-04-25 | 2012-04-24 | 신규한 감광성 수지 조성물 및 그 이용 |
CN201280020149.5A CN103492949B (zh) | 2011-04-25 | 2012-04-24 | 新颖的感光性树脂组合物及其利用 |
US14/113,541 US8993897B2 (en) | 2011-04-25 | 2012-04-24 | Photosensitive resin composition and use thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-097507 | 2011-04-25 | ||
JP2011097507 | 2011-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012147745A1 true WO2012147745A1 (ja) | 2012-11-01 |
Family
ID=47072263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/060978 WO2012147745A1 (ja) | 2011-04-25 | 2012-04-24 | 新規な感光性樹脂組成物及びその利用 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8993897B2 (ja) |
JP (1) | JP6134264B2 (ja) |
KR (1) | KR101878802B1 (ja) |
CN (1) | CN103492949B (ja) |
TW (1) | TWI519892B (ja) |
WO (1) | WO2012147745A1 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014114402A (ja) * | 2012-12-11 | 2014-06-26 | Taiyo Ink Mfg Ltd | 光硬化性組成物および成型品 |
JP2014156601A (ja) * | 2013-01-15 | 2014-08-28 | Taiyo Ink Mfg Ltd | 硬化性樹脂組成物、そのドライフィルム及び硬化物並びにそれらを用いたプリント配線板 |
JP2016128922A (ja) * | 2010-12-14 | 2016-07-14 | 株式会社カネカ | 新規な感光性樹脂組成物及びその利用 |
JP2017036397A (ja) * | 2015-08-11 | 2017-02-16 | 協立化学産業株式会社 | 硬化性樹脂組成物 |
JP2017201369A (ja) * | 2016-05-06 | 2017-11-09 | 株式会社カネカ | 新規な感光性樹脂組成物とその製造方法およびそれを用いたフレキシブルプリント配線基板とその製造方法 |
TWI679497B (zh) * | 2015-11-06 | 2019-12-11 | 日商鐘化股份有限公司 | 附有黑色樹脂硬化膜之聚醯亞胺之製造方法 |
WO2020203663A1 (ja) * | 2019-03-29 | 2020-10-08 | 株式会社カネカ | 感光性樹脂組成物作製キットおよび感光性樹脂組成物、硬化膜、硬化膜付き基板およびその製造方法 |
US10961380B2 (en) | 2017-03-03 | 2021-03-30 | Canon Kabushiki Kaisha | Three-dimensional-forming photo-curable composition, method for producing three-dimensional article from the photo-curable composition, and resin |
US10990010B2 (en) | 2015-04-03 | 2021-04-27 | Mitsubishi Paper Mills Limited | Photosensitive resin composition and etching process |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013111481A1 (ja) * | 2012-01-25 | 2013-08-01 | 株式会社カネカ | 新規な顔料含有絶縁膜用樹脂組成物及びその利用 |
KR102700011B1 (ko) * | 2016-01-11 | 2024-08-30 | 삼성디스플레이 주식회사 | 감광성 수지 조성물, 이로부터 제조된 막 및 상기 막을 포함하는 유기 발광 표시 장치 |
CN107415506A (zh) * | 2017-06-28 | 2017-12-01 | 盐城艾肯科技有限公司 | 一种改良型耐弯折覆盖膜的生产方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007268782A (ja) * | 2006-03-30 | 2007-10-18 | Nippon Steel Chem Co Ltd | 積層体 |
JP2010191215A (ja) * | 2009-02-18 | 2010-09-02 | Kyocera Chemical Corp | 感光性熱硬化型樹脂組成物、およびフレキシブルプリント配線板 |
JP2010197996A (ja) * | 2009-01-30 | 2010-09-09 | Jsr Corp | 感光性絶縁樹脂組成物及びその硬化物並びに絶縁膜の製造方法 |
JP2010204590A (ja) * | 2009-03-06 | 2010-09-16 | Nippon Steel Chem Co Ltd | 感光性樹脂組成物及びこれを用いた回路配線基板 |
JP2010282001A (ja) * | 2009-06-04 | 2010-12-16 | Hitachi Chem Co Ltd | 感光性樹脂組成物及びそれを用いた感光性エレメント |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05262622A (ja) * | 1991-02-28 | 1993-10-12 | Negami Kogyo Kk | 化粧料 |
JP2938808B2 (ja) * | 1995-09-14 | 1999-08-25 | 株式会社日本触媒 | ポリマー微粒子分散型ラジカル重合性樹脂組成物 |
JP4030025B2 (ja) | 1995-09-14 | 2008-01-09 | 株式会社日本触媒 | 光硬化性液状ソルダーレジスト用インキ組成物 |
JPH11143073A (ja) * | 1997-11-11 | 1999-05-28 | Ngk Spark Plug Co Ltd | プリント配線板用レジスト材 |
JP4075192B2 (ja) | 1999-02-24 | 2008-04-16 | 日立化成工業株式会社 | 感光性樹脂組成物、これを用いた感光性エレメント、感光性積層体、フレキシブルプリント配線板の製造法及び実装基板の製造法 |
JP2001166468A (ja) * | 1999-12-07 | 2001-06-22 | Nippon Steel Chem Co Ltd | 感光性樹脂組成物及び多層プリント配線基板 |
JP2001166469A (ja) * | 1999-12-07 | 2001-06-22 | Nippon Steel Chem Co Ltd | 熱又は光硬化性耐熱性樹脂組成物 |
JP4532002B2 (ja) * | 2000-03-06 | 2010-08-25 | 互応化学工業株式会社 | ソルダーレジストインク |
JP2002296776A (ja) * | 2001-03-29 | 2002-10-09 | Taiyo Ink Mfg Ltd | プリント配線板用光硬化性・熱硬化性樹脂組成物及びプリント配線板 |
CN1541383A (zh) * | 2001-06-12 | 2004-10-27 | 三菱化学株式会社 | 电子显示器用的滤光器以及使用该滤光器的电子显示装置 |
US6755350B2 (en) * | 2001-12-21 | 2004-06-29 | Eastman Kodak Company | Sensual label |
JP2005037754A (ja) * | 2003-07-17 | 2005-02-10 | Toyo Ink Mfg Co Ltd | 感光性樹脂組成物、それを用いた感光性フィルム、及びその製造方法 |
JP2005037755A (ja) * | 2003-07-17 | 2005-02-10 | Toyo Ink Mfg Co Ltd | 感光性樹脂組成物、それを用いた感光性フィルム及びその製造方法 |
JP2005173358A (ja) * | 2003-12-12 | 2005-06-30 | Ricoh Co Ltd | 定着方法、定着装置、及び画像形成装置 |
WO2007043240A1 (ja) * | 2005-10-07 | 2007-04-19 | Hitachi Chemical Company, Ltd. | 感光性樹脂組成物及びこれを用いた感光性エレメント |
JP5649773B2 (ja) * | 2007-05-31 | 2015-01-07 | 三菱瓦斯化学株式会社 | 硬化性樹脂組成物および硬化性フィルムならびにそれらの硬化物 |
JP2009271445A (ja) * | 2008-05-09 | 2009-11-19 | Kaneka Corp | 新規な感光性樹脂組成物及びその利用 |
JP5540573B2 (ja) * | 2008-06-09 | 2014-07-02 | 三菱瓦斯化学株式会社 | ビスマレアミック酸、ビスマレイミドおよびその硬化物 |
JP2010117452A (ja) * | 2008-11-12 | 2010-05-27 | Toyo Ink Mfg Co Ltd | 感光性難燃樹脂組成物 |
JP2010139559A (ja) | 2008-12-09 | 2010-06-24 | Jsr Corp | 感放射線性樹脂組成物、感放射線性カバーレイおよびフレキシブルプリント配線板 |
WO2012081295A1 (ja) * | 2010-12-14 | 2012-06-21 | 株式会社カネカ | 新規な感光性樹脂組成物及びその利用 |
-
2012
- 2012-04-24 JP JP2013512374A patent/JP6134264B2/ja active Active
- 2012-04-24 KR KR1020137028349A patent/KR101878802B1/ko active IP Right Grant
- 2012-04-24 TW TW101114590A patent/TWI519892B/zh active
- 2012-04-24 US US14/113,541 patent/US8993897B2/en not_active Expired - Fee Related
- 2012-04-24 CN CN201280020149.5A patent/CN103492949B/zh active Active
- 2012-04-24 WO PCT/JP2012/060978 patent/WO2012147745A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007268782A (ja) * | 2006-03-30 | 2007-10-18 | Nippon Steel Chem Co Ltd | 積層体 |
JP2010197996A (ja) * | 2009-01-30 | 2010-09-09 | Jsr Corp | 感光性絶縁樹脂組成物及びその硬化物並びに絶縁膜の製造方法 |
JP2010191215A (ja) * | 2009-02-18 | 2010-09-02 | Kyocera Chemical Corp | 感光性熱硬化型樹脂組成物、およびフレキシブルプリント配線板 |
JP2010204590A (ja) * | 2009-03-06 | 2010-09-16 | Nippon Steel Chem Co Ltd | 感光性樹脂組成物及びこれを用いた回路配線基板 |
JP2010282001A (ja) * | 2009-06-04 | 2010-12-16 | Hitachi Chem Co Ltd | 感光性樹脂組成物及びそれを用いた感光性エレメント |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016128922A (ja) * | 2010-12-14 | 2016-07-14 | 株式会社カネカ | 新規な感光性樹脂組成物及びその利用 |
JP2014114402A (ja) * | 2012-12-11 | 2014-06-26 | Taiyo Ink Mfg Ltd | 光硬化性組成物および成型品 |
JP2014156601A (ja) * | 2013-01-15 | 2014-08-28 | Taiyo Ink Mfg Ltd | 硬化性樹脂組成物、そのドライフィルム及び硬化物並びにそれらを用いたプリント配線板 |
US10990010B2 (en) | 2015-04-03 | 2021-04-27 | Mitsubishi Paper Mills Limited | Photosensitive resin composition and etching process |
JP2017036397A (ja) * | 2015-08-11 | 2017-02-16 | 協立化学産業株式会社 | 硬化性樹脂組成物 |
TWI679497B (zh) * | 2015-11-06 | 2019-12-11 | 日商鐘化股份有限公司 | 附有黑色樹脂硬化膜之聚醯亞胺之製造方法 |
JP2017201369A (ja) * | 2016-05-06 | 2017-11-09 | 株式会社カネカ | 新規な感光性樹脂組成物とその製造方法およびそれを用いたフレキシブルプリント配線基板とその製造方法 |
US10961380B2 (en) | 2017-03-03 | 2021-03-30 | Canon Kabushiki Kaisha | Three-dimensional-forming photo-curable composition, method for producing three-dimensional article from the photo-curable composition, and resin |
WO2020203663A1 (ja) * | 2019-03-29 | 2020-10-08 | 株式会社カネカ | 感光性樹脂組成物作製キットおよび感光性樹脂組成物、硬化膜、硬化膜付き基板およびその製造方法 |
KR20210146973A (ko) | 2019-03-29 | 2021-12-06 | 가부시키가이샤 가네카 | 감광성 수지 조성물 제작 키트 및 감광성 수지 조성물, 경화막, 경화막 구비 기판 및 그의 제조 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR101878802B1 (ko) | 2018-07-16 |
TW201248318A (en) | 2012-12-01 |
JP6134264B2 (ja) | 2017-05-24 |
KR20140022396A (ko) | 2014-02-24 |
TWI519892B (zh) | 2016-02-01 |
US20140069702A1 (en) | 2014-03-13 |
CN103492949A (zh) | 2014-01-01 |
US8993897B2 (en) | 2015-03-31 |
CN103492949B (zh) | 2016-12-28 |
JPWO2012147745A1 (ja) | 2014-07-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6134264B2 (ja) | 新規な感光性樹脂組成物及びその利用 | |
JP5639284B2 (ja) | 黒色感光性樹脂組成物及びその利用 | |
JP5797279B2 (ja) | 新規な顔料含有絶縁膜用樹脂組成物を用いた顔料含有絶縁膜付きプリント配線板 | |
JP6134403B2 (ja) | 新規な感光性樹脂組成物及びその利用 | |
JP6006716B2 (ja) | 新規な絶縁膜及び絶縁膜付きプリント配線板 | |
JP2012237864A (ja) | 新規な黒色感光性樹脂組成物及びその利用 | |
JP5764371B2 (ja) | 新規な感光性樹脂組成物及びその利用 | |
JP5739209B2 (ja) | 新規な感光性樹脂組成物及びその利用 | |
JP6093563B2 (ja) | 黒色感光性樹脂組成物及びその利用 | |
JP6134188B2 (ja) | 黒色感光性樹脂組成物及びその利用 | |
JP5764368B2 (ja) | 新規な感光性樹脂組成物及びその利用 | |
JP6134187B2 (ja) | 黒色感光性樹脂組成物及びその利用 | |
JP6066653B2 (ja) | 新規な感光性樹脂組成物及びその利用 | |
JP6387130B2 (ja) | 黒色感光性樹脂組成物及びその利用 | |
JP6043066B2 (ja) | 新規な絶縁膜及びその利用、並びに絶縁膜の生産方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12777563 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2013512374 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14113541 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20137028349 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12777563 Country of ref document: EP Kind code of ref document: A1 |