WO2017056196A1 - コーティング用樹脂組成物 - Google Patents
コーティング用樹脂組成物 Download PDFInfo
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- WO2017056196A1 WO2017056196A1 PCT/JP2015/077563 JP2015077563W WO2017056196A1 WO 2017056196 A1 WO2017056196 A1 WO 2017056196A1 JP 2015077563 W JP2015077563 W JP 2015077563W WO 2017056196 A1 WO2017056196 A1 WO 2017056196A1
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- resin composition
- weight
- ultraviolet curable
- coating resin
- curable coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/08—Homopolymers or copolymers of acrylic acid esters
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- 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
- C08F290/04—Polymers provided for in subclasses C08C or C08F
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/6705—Unsaturated polymers not provided for in the groups C08G18/671, C08G18/6795, C08G18/68 or C08G18/69
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/722—Combination of two or more aliphatic and/or cycloaliphatic polyisocyanates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/062—Copolymers with monomers not covered by C09D133/06
- C09D133/066—Copolymers with monomers not covered by C09D133/06 containing -OH groups
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- 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
- C09D5/08—Anti-corrosive paints
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1283—After-treatment of the printed patterns, e.g. sintering or curing methods
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/282—Applying non-metallic protective coatings for inhibiting the corrosion of the circuit, e.g. for preserving the solderability
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/285—Permanent coating compositions
- H05K3/287—Photosensitive compositions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2502/00—Acrylic polymers
Definitions
- the present invention relates to an ultraviolet curable coating resin composition having good chemical resistance, gas barrier properties, and flexibility corresponding to forming molding when a coating is formed on a substrate surface, and the coating resin. It relates to an article coated with the composition.
- such a coating resin composition is newly formed into a three-dimensional shape with a chemical barrier for cosmetics, a gas barrier function for gases such as corrosive gases, etc.
- a gas barrier function for gases such as corrosive gases, etc.
- Prior art document 3 Japanese Patent Laid-Open No. 2012-136614
- prior patent document 4 Japanese Patent Laid-Open No. 2003-071943 disclose techniques relating to radiation curable resin compositions having excellent gas barrier properties. The performance is not sufficient in terms of chemical resistance under a high temperature environment of about 80 ° C. and elongation properties corresponding to forming molding.
- the present invention has been made in view of the above problems, and is excellent in chemical resistance for human skin protection cream containing a mixture of aromatic compounds of alkyl esters of benzoic acid represented by Neutrogena cream even at high temperatures,
- it is an object to obtain a coating resin composition that has excellent gas barrier properties against a metal corrosive gas typified by sulfur-containing gas and has excellent characteristics corresponding to a three-dimensional shape forming process. To do.
- the present invention relates to an ultraviolet curable coating resin composition having a weight average molecular weight of 5000 to 70000, a number of (meth) acrylate functional groups per molecule of 5 to 40, a hydroxyl group, and a hydroxyl value.
- the present invention relates to an ultraviolet curable coating resin composition comprising an acrylic resin having a glass transition temperature of 20 to 90 ° C., a volatile organic solvent and a photopolymerization initiator, and having a glass transition temperature of 2 to 200 mgKOH / g. is there.
- the ultraviolet curable coating resin composition of the present invention has excellent chemical resistance to human skin protection creams containing a mixture of aromatic compounds of alkyl esters of benzoic acid represented by Neutrogena cream even at high temperatures, and sulfur. UV curable coating resin composition having excellent gas barrier properties against metal corrosive gas typified by contained gas, and excellent flexibility for three-dimensional shape molding processing, and the coating composition It became possible to obtain articles coated with.
- the present invention is (1) an ultraviolet curable coating resin composition having a weight average molecular weight of 5000 to 70000, a number of (meth) acrylate functional groups per molecule of 5 to 40,
- An ultraviolet curable coating comprising an unsaturated group-containing acrylic resin having a hydroxyl value of 2 to 200 mgKOH / g and a glass transition temperature of 20 to 90 ° C., a volatile organic solvent, and a photopolymerization initiator
- the present invention relates to a resin composition.
- the ultraviolet curable coating resin composition further comprises 2.5 to 10 parts by weight of a polyisocyanate having an NCO weight% of 6 to 24 based on 100 parts by weight of the acrylic resin.
- the present invention relates to the ultraviolet curable coating resin composition as described in (1).
- the present invention provides: (3) the volatile organic solvent of the ultraviolet curable coating resin composition is a glycol solvent, an ester solvent, a ketone solvent, a polyhydric alcohol solvent, or an aromatic hydrocarbon solvent.
- the polyisocyanate is a polyisocyanate composed of any one of hexamethylene diisocyanate and isophorone diisocyanate or a combination thereof. This relates to a resin composition for UV curable coating.
- the ultraviolet curable coating resin composition further contains a photopolymerizable low-molecular compound that is crosslinked or polymerized by ultraviolet rays in an amount of 80 parts by weight or less based on 100 parts by weight of the acrylic resin.
- the present invention relates to the ultraviolet curable coating resin composition according to any one of (1) to (3).
- the photopolymerizable low molecular weight compound is acryloylmorpholine, vinylcaprolactam, ethyl carbitol (meth) acrylate, phenoxyethyl (meth) acrylate, isoboronyl (meth) acrylate, 2-hydroxyethyl.
- the present invention relates to the ultraviolet curable coating resin composition according to any one of (1) to (4), which is one or more selected from vinyl ethers.
- the ultraviolet curable coating resin composition comprises 100 parts by weight of an acrylic polymer additive or / and a silicon additive for imparting screen printability to the acrylic resin.
- the present invention relates to the ultraviolet curable resin composition for coating according to any one of (1) to (5), which is contained in an amount of 10 parts by weight or less.
- the present invention provides (7) the coating resin composition as described in any one of (1) to (6), wherein the coating resin composition is used for chemical resistance, gas barrier properties or forming molding.
- the present invention relates to a resin composition for ultraviolet curable coating.
- the present invention provides (8) a coated article coated with the ultraviolet curable coating resin composition described in any one of (1) to (7) above, which comprises a coating process, a heating and drying process, and an ultraviolet irradiation.
- the present invention relates to a coated article produced by performing the steps in this order.
- the present invention provides (9) a coated article having a three-dimensional shape coated with the ultraviolet curable coating resin composition according to any one of (1) to (7), wherein the coating step, heating and
- the present invention relates to a coated article having a three-dimensional shape, which is produced by performing a drying step, a three-dimensional shape forming step, and an ultraviolet irradiation step in this order.
- NC resistance refers to chemical resistance to a human skin protection cream containing a mixture of aromatic compounds of alkyl esters of benzoic acid represented by Neutrogena cream.
- NC refers to Neutrogena cream.
- S gas barrier property refers to gas barrier property against metal corrosive gas represented by sulfur-containing gas.
- F moldability refers to flexibility corresponding to a three-dimensional shape molding process.
- the acrylic resin used in the present invention has a weight average molecular weight of 5,000 to 70,000, preferably 6,000 to 50,000, and more preferably 9000 to 30,000.
- the acrylic resin has a weight average molecular weight of less than 5,000, the molecular structure becomes small, so that a mixture of aromatic compounds such as alkyl esters of benzoic acid contained in “NC” easily penetrates.
- NC resistance in a high temperature environment of about °C deteriorates.
- the weight average molecular weight exceeds 70,000, the solubility in the volatile organic solvent is lowered, so that the blending ratio of the acrylic resin has to be reduced in order to ensure a viscosity suitable for coating.
- the coating film obtained by coating the resin composition for coating and drying and curing particularly deteriorates the “S gas barrier property” because the film thickness becomes small.
- the acrylic resin used in the present invention has an average (meth) acrylate functional group number per molecule of 5 to 40, preferably 12 to 34, more preferably 20 to 30.
- the average number of (meth) acrylate functional groups per molecule refers to the number of (meth) acrylate functional groups present per molecular weight of one molecule calculated from the GPC number average molecular weight.
- the average (meth) acrylate functional group number is less than 5
- a sufficient cross-linked structure cannot be obtained by ultraviolet irradiation, resulting in inferior “NC resistance” and “S gas barrier property”.
- the average (meth) acrylate functional group number exceeds 40, the crosslink density by ultraviolet irradiation becomes too high and the “F moldability” becomes inferior.
- the acrylic resin used in the present invention has a hydroxyl group and a hydroxyl value of 2 to 200 mgKOH / g, preferably 50 to 150 mgKOH / g, more preferably 90 to 130 mgKOH / g.
- the hydroxyl value is less than 2 mgKOH / g, “NC resistance” and “S gas barrier property” tend to be inferior.
- the hydroxyl group has a function of increasing the reactivity of the (meth) acrylate functional group by ultraviolet rays, and the acrylic group becomes smaller as the hydroxyl value becomes smaller.
- the polar part based on the hydroxyl group in the resin is reduced, and the reactivity of the (meth) acrylate functional group in the acrylic resin tends to be reduced by ultraviolet rays, making it difficult to form a strong final coating film. It is done.
- the hydroxyl value exceeds 200 mgKOH / g, the remaining hydroxyl groups are present and the affinity with a mixture of aromatic compounds of alkyl esters of benzoic acid contained in “NC” increases. "NC resistance" will be impaired.
- the acrylic resin used in the present invention has a glass transition temperature of 20 to 90 ° C., preferably 40 to 80 ° C., more preferably 50 to 70 ° C. If the glass transition temperature is less than 20 ° C., the workability until the coating film after heating and drying treatment remains tacky (sticky) is transferred to the next process is lost, and finally the coating cured by ultraviolet irradiation is used.
- the film is inferior to “NC resistance” particularly in a high temperature environment.
- the glass transition temperature exceeds 90 ° C. the glass transition temperature of the coating film finally cured by ultraviolet irradiation becomes too high, and there is a problem in efficiently performing “F molding”. .
- the acrylic resin having the characteristics described in [0023] to [0026] used in the present invention includes Toa Gosei Co., Ltd., Nippon Shokubai Co., Ltd., DIC Corporation, Mitsui Chemicals, Nippon Kayaku Co., Ltd., Mitsubishi Rayon. It can be appropriately provided from a manufacturer having excellent resin synthesis technology such as a corporation.
- the volatile organic solvent used in the present invention is not particularly limited as long as it has compatibility with the acrylic resin used in the present invention, but preferred solvents having good compatibility and solubility are: Any one of a glycol solvent, an ester solvent, a ketone solvent, a polyhydric alcohol solvent, and an aromatic hydrocarbon solvent, or a combination thereof.
- the boiling point of the volatile organic solvent when mass-producing the ultraviolet curable coating composition of the present invention by screen printing, the drying on the screen plate is suppressed and stable mass production is possible. Therefore, it is desirable that the solvent having a boiling point of 170 ° C. or higher is contained in an amount of 30% by weight or more with respect to the total amount of the volatile organic solvent contained in the ultraviolet curable coating resin composition of the present invention.
- preferable examples of the volatile organic solvent having a boiling point of 170 ° C. or higher include isophorone, dibasic acid ester (DBE), 3-methoxy-3-methylbutanol, 3-methoxy-3-methylbutyl acetate, ethylene glycol.
- examples include monobutyl ether acetate, coal tar naphtha having a boiling point exceeding 170 ° C., diethylene glycol monoethyl ether (acetate), diethylene glycol monobutyl ether (acetate), triethylene glycol monobutyl ether (acetate), ⁇ -butyllactone, etc.
- ethyl acetate examples include ethyl acetate, butyl acetate, propyl acetate, cyclohexanone, xylene, mineral spirits having a boiling point of 150 to 170 ° C., boiling points of 160 to 170 ° C.
- Coal tar naphtha propylene glycol monomethyl ether (acetate), isopropyl alcohol, diacetone alcohol.
- the blending amount of the volatile organic solvent used in the present invention is not particularly limited, but if the solvent blending ratio becomes too large, the final coating thickness after the heating, drying and ultraviolet irradiation processes becomes small. In particular, the “S gas barrier property” becomes inferior. In order to compensate for this, several times of overcoating may be performed, but efficiency is lacking. Therefore, in order to obtain sufficient “NC resistance”, “S gas barrier property”, and “F moldability” with a single coating, the blending of the volatile organic solvent with respect to 100 parts by weight of the acrylic resin used in the present invention. It is desirable that the ratio be 1000 parts by weight or less.
- the suitable coating film thickness of the final coating film thickness which passed through the heating, drying, and ultraviolet irradiation process is 8 micrometers or more, More preferably, it is 10 micrometers or more, More preferably, it is 15 micrometers or more.
- the blending amount of the volatile organic solvent is too small, the viscosity of the coating resin composition becomes high, and the suitability for various coatings such as roller coating, spin coating, spray coating, gravure coating, and screen printing coating is deteriorated. . Therefore, it is desirable to set the volatile organic solvent to 100 parts by weight or more with respect to 100 parts by weight of the acrylic resin used in the present invention.
- the resin composition for ultraviolet curable coating of the present invention is a polyisocyanate for the purpose of improving the adhesion to various substrates and for further improving “NC resistance”, “S gas barrier property”, and “F moldability”.
- Suitable such polyisocyanates have an NCO weight percentage of 6 to 24 weight percent, preferably 6.5 to 20 weight percent, more preferably 7 to 15 weight percent.
- NCO wt% is less than 6 wt%, the reaction rate is slow and the crosslink density is low, so that improvement in adhesion, “NC resistance”, “S gas barrier properties”, and “F moldability” cannot be expected.
- the NCO wt% exceeds 24 wt%, the crosslink density becomes too high and the stability of the “F moldability” tends to be hindered.
- the polyisocyanate is desirably contained in an amount of 2.5 to 10 parts by weight based on 100 parts by weight of the acrylic resin, preferably 3 to 8 parts by weight, and more preferably 4 to 7 parts by weight. It is. If the polyisocyanate is less than 2.5 parts by weight, the crosslinking density becomes small, and therefore, improvement in adhesion, “NC resistance”, “S gas barrier property” and “F moldability” cannot be expected. On the other hand, if the polyisocyanate exceeds 10 parts by weight, a large amount of unreacted isocyanate remains, which adversely affects adhesion, “NC resistance”, “S gas barrier property”, and “F moldability”. .
- various polyisocyanates can be used if the NCO wt% is 6 to 24 wt%, but considering yellowing and weather resistance of the coating film, any one of hexamethylene diisocyanate and isophorone diisocyanate or combinations thereof It is desirable to use a polyisocyanate consisting of It is also possible to use a block type polyisocyanate designed so as not to cause a reaction up to a certain temperature.
- Such polyisocyanate can be appropriately selected from products sold by DIC Corporation, Mitsui Chemicals, Tosoh Corporation, Asahi Kasei Chemicals Corporation and the like.
- the ultraviolet curable coating resin composition of the present invention contains a photopolymerizable low-molecular compound that undergoes a crosslinking or polymerization reaction with ultraviolet light with respect to 100 parts by weight of the acrylic resin. Although it can be contained in 80 parts by weight or less, it is preferably 70 parts by weight, more preferably 50 parts by weight or less. When the content of the photopolymerizable low-molecular compound exceeds 80 parts by weight, the curing rate by ultraviolet rays is slowed, and the abundance of the photopolymerizable low-molecular compound having a small molecular weight is increased so that the entire cured coating film is obtained. Tends to decrease the “NC resistance” and “S gas barrier property”.
- photopolymerizable low molecular weight compounds examples include acryloyl morpholine, vinyl caprolactam, ethyl carbitol (meth) acrylate, phenoxyethyl (meth) acrylate, isoboronyl (meth) acrylate, butanediol mono (meth) acrylate, 2- Hydroxyethyl (meth) acrylate, N, N-diethylaminoethyl (meth) acrylate, N, N-dimethylaminoethyl (meth) acrylate, polyethylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate, polyethylene glycol di ( (Meth) acrylate, tripropylene glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, 1,9-nonanediol di (meth) acrylate, neo Ne
- the photopolymerizable low molecular weight compound having a small number of functional groups and having a weight average molecular weight of about 10,000 or less is easy to use, preferably 6000 or less, more preferably 3000 or less. This is because it is generally difficult to adjust the resin composition for UV coating of the present invention to an appropriate coating viscosity by increasing the viscosity as the number of functional groups and / or the average molecular weight of the photopolymerizable low molecular weight compound increases. is there.
- Examples of the photopolymerizable low molecular weight compound having a small number of functional groups and a weight average molecular weight of about 3000 or less include acryloyl morpholine, vinyl caprolactam, ethyl carbitol (meth) acrylate, phenoxyethyl (meth) acrylate, isoboronyl (meth) ) Acrylate, 2-hydroxyethyl vinyl ether, which are particularly advantageous in that they have excellent adhesion to plastic substrates.
- the ultraviolet curable coating resin composition of the present invention contains a photopolymerization initiator in an amount of 5 to 20 parts by weight based on 100 parts by weight of the acrylic resin in order to be cured well by ultraviolet irradiation.
- the amount is 7 to 18 parts by weight, more preferably 10 to 15 parts by weight.
- the content of the photopolymerization initiator is less than 5 parts by weight, sufficient UV curing is not performed and “NC resistance” and “S gas barrier property” are weakened.
- the content of the photopolymerization initiator exceeds 20 parts by weight, a large amount of unreacted photopolymerization initiator remains, which causes an adverse effect such as clouding of the coating film during the molding in “F moldability”. is there.
- photopolymerization initiators examples include benzoin ethyl ether, 2-hydroxy-2-methyl-1-phenylpropan-1-one, ⁇ -hydroxyacetophenone, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- (4 -(Methylthio) phenyl) -2-morpholinopropanone-1, bisacylphosphine oxide, thioxanthone, sulphone oxide, and the like, and ⁇ -hydroxyacetophenone, 1-hydroxycyclohexyl when yellowing of the cured coating is disliked It is preferable to use phenyl ketone or bisacylphosphine oxide.
- thermal polymerization initiator not only a photopolymerization initiator but also a thermal polymerization initiator can be used.
- thermal polymerization initiator include acyl peroxides such as benzoyl peroxide, cumene hydro gen. Hydroperoxides such as peroxides and azo compounds such as azobisisobutyronitrile can be used.
- a colorant, an extender pigment or the like may be added to the ultraviolet curable coating resin composition of the present invention to such an extent that “NC resistance”, “S gas barrier property”, and “F moldability” are not impaired. It is necessary to consider the influence of fine voids generated in the coating film by blending the colorant and extender, and coloring that does not impair “NC resistance”, “S gas barrier property”, and “F moldability” in practice.
- the compounding amount of the agent, extender and the like is 70 parts by weight or less, preferably 60 parts by weight or less, and more preferably 50 parts by weight or less with respect to 100 parts by weight of the acrylic resin.
- colorants examples include azo pigments, disazo pigments, bisazo pigments, phthalocyanine pigments, anthraquinone pigments, isoindolinone pigments, dioxazine pigments, quinacridone pigments, perylene pigments, carbon black pigments, lake black pigments, perylene black.
- examples thereof include pigments, aniline black pigments, iron oxide pigments, titanium pigments, zinc sulfide pigments, and various chromatic dyes, and these can be used alone or in combination.
- the extender pigment include (fine particles) silica, talc, calcium carbonate, magnesium carbonate, bentonite, precipitated barium sulfate, zinc oxide, alumina, and other various fillers.
- the other fillers include resin beads, metallic particles, metal powder, metal oxide powder, graphite, pearl pigment, fluorescent pigment, wax particles, protein powder, and the like. Moreover, it is similar to functional materials such as ultraviolet ray absorbing materials, antibacterial materials, heat absorbing materials, refractive index adjusting materials, slipperiness imparting materials, slipperiness preventing materials, phosphorescent materials, polarizing materials, antireflection materials, and diffusive materials. These may be used, and one or more of these may be used in combination.
- functional materials such as ultraviolet ray absorbing materials, antibacterial materials, heat absorbing materials, refractive index adjusting materials, slipperiness imparting materials, slipperiness preventing materials, phosphorescent materials, polarizing materials, antireflection materials, and diffusive materials. These may be used, and one or more of these may be used in combination.
- the addition amount of the additive to the ultraviolet curable coating resin composition of the present invention may be an amount that provides a level printing property and a screen printing coating film that is free from foaming and repellency.
- the amount is less than 0.1 parts by weight, it is often difficult to obtain a sufficient leveling effect and foaming and repellency prevention effect.
- the amount exceeds 10 parts by weight, the “F moldability” Defects that cause fogging or the like in the coating film are likely to occur during the molding. Therefore, a preferable amount of the additive is 0.1 to 8 parts by weight, more preferably 0.1 to 6 parts by weight with respect to 100 parts by weight of the acrylic resin.
- Such additives can be appropriately selected from additive products sold by ALTANA, Shin-Etsu Chemical Co., Ltd., Enomoto Kasei Co., Ltd., and the like.
- the screen-curable UV curable coating resin composition of the present invention can be easily coated with a large film thickness as described above, and in particular, “S” for protecting metal corrosion from gas that corrodes metal. It is advantageous for “gas barrier properties”. For example, when the resin composition for ultraviolet curable coating of the present invention is coated on a member printed with a metal conductive paste such as silver paste or copper paste, for example, sulfur powder is generated in an 80 ° C. environment. It has a surprisingly advantageous effect on the “S gas barrier property”, such as being able to satisfactorily suppress discoloration caused by corrosion of the conductive circuit after the coating material is charged for 24 hours in an atmosphere filled with gas.
- the substrate of the coating is, for example, a PET substrate
- F moldability so that a conductive circuit article having a flexible three-dimensional shape can be obtained. It becomes easy.
- the resin composition for ultraviolet curable coating of the present invention can be used extremely advantageously for electrical / electronic parts and member relations as described in [0045], and automobiles have many opportunities to be touched by “NC”. It can be advantageously used for items such as meters and control panels that are interior parts of vehicles, and in particular, conductive circuit members are attached to the items, and items outside the window are three-dimensionally shaped. In this case, it is possible to utilize it in an extremely surprisingly advantageous manner comprehensively including “S gas barrier property” and “F moldability”.
- the ultraviolet curable coating resin composition of the present invention is a coated article coated with the ultraviolet curable coating resin composition, and the coating process, the heating or drying process, and the ultraviolet ray irradiation process are performed in this order.
- a coated article having both “NC resistance” and “S gas barrier property” can be produced and provided.
- a paint plate As a base material for coating used in the coated article provided by the present invention, a paint plate, polyester (PET), polycarbonate (PC), acrylic, polypropylene (PP), polyethylene (PE), vinyl chloride, etc.
- PET polyester
- PC polycarbonate
- acrylic acrylic
- PP polypropylene
- PE polyethylene
- vinyl chloride etc.
- Various plate-like base materials, sheet-like base materials, film-like base materials and the like can be mentioned, and a decorative layer, a conductive circuit layer, and the like may be provided on the base material.
- any of a roller coat, a spin coat, a spray coat, a gravure coat, a coat applied with a spatula or a brush, a screen print coat, etc. may be used, but an easily uniform thick film coating layer In order to obtain this, it is preferable to use a screen printing coat.
- the heating and drying step is performed by heating and drying at 80 ° C. for about 30 minutes as a standard condition to scatter the volatile organic solvent in the coating film of the ultraviolet curable coating resin composition of the present invention.
- the coating film is in a tack-free state at the time of performing this heat drying step, which is a step of suitably reacting the hydroxyl group in the acrylic resin of the invention with the polyisocyanate, and is a coating that does not interfere with the next step such as molding. It becomes a film state. Therefore, it can be bent or formed at this point.
- the coating film that has undergone the heating and drying processes is finally irradiated with a metal halide lamp with a cumulative light intensity of about 400 mJ / cm 2 and a peak illuminance of about 400 mW / cm 2.
- a metal halide lamp with a cumulative light intensity of about 400 mJ / cm 2 and a peak illuminance of about 400 mW / cm 2.
- the functional group that reacts to ultraviolet rays undergoes a crosslinking reaction to finally form a coating film having excellent toughness, and thus has excellent “NC resistance” and “S gas barrier properties”. It becomes.
- a coated article having a three-dimensional shape coated with the ultraviolet curable coating resin composition, the coating step, the heating or drying step, and the three-dimensional shape forming is a coated article that has been molded and processed into a three-dimensional shape by performing the molding process and the ultraviolet irradiation process in this order, and it is easy to produce and provide a three-dimensional coated article that has both “NC resistance” and “S gas barrier properties”. it can.
- the coated article having the three-dimensional shape is easily produced and provided by performing the three-dimensional shape forming process after the heating and drying process of [0049] and before the ultraviolet irradiation process of [0050]. it can.
- the three-dimensional shape forming molding process uses a mold having a desired three-dimensional shape to deform a coated article that has undergone the heating and drying process by a vacuum molding machine, a pressure molding machine, a vacuum / pressure molding machine, an emboss molding machine, or the like. If the resin composition for ultraviolet curable coating of the present invention is to be processed, it can cope with an elongation of 250 to 300%, and if the ultraviolet irradiation step is performed after the three-dimensional shape forming molding step is performed. A coated article molded into a desired three-dimensional shape, which has both “NC resistance” and “S gas barrier property”, can be easily produced and provided.
- UV curable coating resin compositions of Examples and Comparative Examples were uniformly measured using a propeller rotary stirrer after weighing the materials shown in Table 1 into the preparation containers at the mixing ratios (parts by weight) shown in the same table. And mixed by stirring.
- each of the prepared ultraviolet curable coating resin compositions of Examples and Comparative Examples was placed on a transparent PC having a thickness of 0.5 mm in which conductive silver paste circuits were linearly arranged at equal intervals, and T150 mesh / Coating was performed by 12 ⁇ 12 cm full solid screen printing using an inch screen printing plate.
- the coating material which passed through the said coating process was heated and dried by the box-type dryer 80 degreeC for 30 minutes.
- the thickness of the coating film after this step was measured and found to be 8-12 ⁇ m.
- the coated article that had undergone the three-dimensional shape forming process was irradiated with ultraviolet rays from a metal halide lamp under the conditions of an integrated light amount of 400 mJ / cm 2 and a peak illuminance of 400 mW / cm 2 to finally cure the coating film.
- the performance of the UV-curable coating tree composition of the present invention, an article obtained by heating and drying the coating composition, and a three-dimensional article coated with the coating composition were evaluated.
- NC resistance In the coated article of the present invention having a three-dimensional shape finally irradiated with ultraviolet rays, “NC” was evenly applied by hand to the portion where the elongation rate was 250%, and the coated product was placed in an 80 ° C. environment. After leaving it for 5 hours, “NC” was washed away with tap water, and it was visually inspected whether any abnormality occurred in the part. Judgment was as follows, and ⁇ and ⁇ were acceptable levels. (Double-circle): No abnormality was observed by 4 times magnifier observation. ⁇ : Subtle cloudiness was observed with 4X magnifier observation. (Triangle
- the coated article of the present invention having a three-dimensional shape finally irradiated with ultraviolet rays was cut out as a 5 ⁇ 5 cm square sample chip including a portion having an elongation rate of 250%.
- an aluminum cup containing 0.5 g of sulfur powder is placed in a sealable glass bottle container, a stainless steel wire mesh is placed on the cup, and the sample chip is placed on the wire mesh according to the present invention.
- the cured film of the ultraviolet curable coating resin composition was placed on top.
- the glass bottle container was sealed and stored at 80 ° C. for 24 hours, and then the sample chip was taken out.
- the conductive silver paste circuit was examined visually for abnormalities such as discoloration due to corrosion.
- Judgment was as follows, and ⁇ and ⁇ were acceptable levels.
- the quality of screen printability during the coating process was evaluated as follows, and ⁇ and ⁇ were accepted levels.
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Abstract
Description
らの組合せからなるポリイソシアネートであることを特徴とする(1)又は(2)に記載の紫外線硬化型コーティング用樹脂組成物に関するものである。
更に、本発明は、(7)前記コーティング用樹脂組成物が、耐薬品性、ガスバリア性又はフォーミング成形用の用途に用いられることを特徴とする(1)~(6)のいずれかに記載の紫外線硬化型コーティング用樹脂組成物に関するものである。
「NC耐性」と表記されたものは、ニュートロジーナクリームに代表される安息香酸のアルキルエステル類の芳香族化合物の混合物を含む人肌保護クリームに対する耐薬品性を指す。
「NC」と表記されたものは、ニュートロジーナクリームを指す。
「Sガスバリア性」と表記されたものは、硫黄含有ガスに代表される金属腐食性ガスに対するガスバリア性を指す。
「F成形性」と表記されたものは、3次元形状成形加工に対応する柔軟性を指す。
当該アクリル樹脂の重量平均分子量が5000未満である場合は、分子構造が小さくなるため「NC」に含有されている安息香酸のアルキルエステル類等の芳香族化合物の混合物が浸透し易くなり、特に80℃程度の高温環境下での「NC耐性」が悪くなる。
一方、重量平均分子量が70000を超えると、揮発性有機溶剤への溶解度が下がることからコーティングに適する粘度を確保するためには当該アクリル樹脂の配合比率を小さ
くせざるを得ない。かかるコーティング用樹脂組成物をコーティングして乾燥硬化した塗膜は膜厚が小さくなるために特に「Sガスバリア性」を悪くする。
当該平均(メタ)アクリレート官能基数が5未満であると紫外線照射で十分な架橋構造をとることができず「NC耐性」と「Sガスバリア性」に劣るものとなる。
一方、当該平均(メタ)アクリレート官能基数が40を超えると紫外線照射での架橋密度が高くなり過ぎ「F成形性」に劣るものとなる。
水酸基価が2mgKOH/g未満の場合「NC耐性」、「Sガスバリア性」が劣る傾向がある。この理由は明確には分からないが、本発明者らの考察によれば、水酸基は(メタ)アクリレート官能基の紫外線による反応性を高める作用を有しており、水酸基価が小さくなるにつれて前記アクリル樹脂中の水酸基に基づく極性部分が減少し、アクリル樹脂中の(メタ)アクリレート官能基の紫外線による反応性が低下して強靭な最終塗膜を形成することが困難になる傾向があるためと考えられる。
一方、水酸基価が200mgKOH/gを超えた場合、残存する水酸基が多在することになり「NC」に含有されている安息香酸のアルキルエステル類の芳香族化合物の混合物との親和性が増して「NC耐性」を損なうようになる。
ガラス転移温度が20℃未満であると、加熱及び乾燥処理後のコーティング塗膜にタック(ベタつき)が残り次工程に移るまでの作業性を損ね、また、最終的に紫外線照射で硬化された塗膜においては特に高温環境下での「NC耐性」に劣るものとなる。
一方、ガラス転移温度が90℃を超えると、最終的に紫外線照射で硬化された塗膜のガラス転移温度が高くなり過ぎて「F成形」を効率よく行うことに支障が生じるようになってしまう。
従い、1回のコーティングで十分な「NC耐性」、「Sガスバリア性」、「F成形性」を得るためには、本発明で使用するアクリル樹脂100重量部に対しする揮発性有機溶剤の配合比率を1000重量部以下にしておくことが望ましい。また、加熱、乾燥及び紫外線照射工程を経た最終的な塗膜厚の好適な塗膜厚は8μm以上、より好ましくは10μm以上、更に好ましくは15μm以上である。
一方、揮発性有機溶剤の配合量が少なすぎるとコーティング用樹脂組成物の粘度が高くなって、ローラーコート、スピンコート、スプレイコート、グラビアコート、スクリーン印刷コート等の各種コーティングへの適性が悪くなる。従い、本発明で使用するアクリル樹脂100重量部に対しする揮発性有機溶剤を100重量部以上にしておくことが望ましい。
NCO重量%が6重量%未満である場合は、反応速度が遅くなるとともに架橋密度が小さいため、密着性、「NC耐性」、「Sガスバリア性」、「F成形性」ともに向上効果は期待できない。
一方、NCO重量%が24重量%を超えると架橋密度が大きくなり過ぎて「F成形性」の安定性確保に支障を生じさせる傾向がある。
該ポリイソシアネートが2.5重量部未満であると架橋密度が小さいものとなるため、密着性、「NC耐性」、「Sガスバリア性」、「F成形性」ともに向上効果は期待できない。
一方、ポリイソシアネートが10重量部を超えると未反応のイソシアネートが多量に残存することになり、密着性、「NC耐性」、「Sガスバリア性」、「F成形性」に悪影響を与えるようになる。
また、一定温度までは反応を起こさないように設計されたブロック型ポリイソシアネートを使用することも可能である。
該光重合性低分子化合物の含有量が80重量部を超えると、紫外線による硬化速度が遅くなるとともに、分子量の小さい当該光重合性低分子化合物の存在量が多くなることで硬化塗膜全体としての強靭性が減少し「NC耐性」、「Sガスバリア性」が悪くなる傾向がある。
該光重合性低分子化合物は、官能基数が少なく且つ重量平均分子量が10000程度以下のものが使いやすく、好ましくは6000以下、更に好ましくは3000以下である。
これは、一般的に該光重合性低分子化合物の官能基数及び/又は平均分子量が大きくなるにつれて粘度が大きくなることで本発明紫外線コーティング用樹脂組成物をコーティング適正粘度に調整し難くなるためである。
官能基数が少なく且つ重量平均分子量が3000程度以下の該光重合性低分子化合物の例としては、アクリロイルモルフォリン、ビニルカプロラクタム、エチルカルビトール(メタ)アクリレート、フェノキシエチル(メタ)アクリレート、イソボロニル(メタ)アクリレート、2-ヒドロキシエチルビニルエーテルが挙げられ、これらは特にプラスチック基材への接着性に優れているという利点もある。
光重合開始剤の含有量が5重量部未満であると十分な紫外線硬化が行われず「NC耐性」、「Sガスバリア性」が弱くなる。
一方、光重合開始剤の含有量が20重量部を超えると未反応の光重合開始剤が多量に残存することで「F成形性」において当該成形時に塗膜に曇りを発生させるなどの悪影響がある。
なお、本発明では、光重合開始剤に限らず、熱重合開始剤を使用することもでき、このような熱重合開始剤の例としては、ベンゾイルパーオキサイドのようなアシルパーオキサイド類、クメンハイドロパーオキサイドのようなハイドロパーオキサイド類の過酸化物やアゾビスイソブチロニトリルのようなアゾ化合物類を使用することが出来る。
また、前記体質顔料の例としては、(微粒子)シリカ、タルク、炭酸カルシウム、炭酸マグネシウム、ベントナイト、沈降性硫酸バリウム、酸化亜鉛、アルミナ、その他各種フィラーなどが挙げられる。
また、前記その他のフィラーの例としては、樹脂ビーズ、メタリック粒子、金属粉、金属酸化物粉、グラファイト、パール顔料、蛍光顔料、ワックス粒子、プロテインパウダーなどがあげられる。また、紫外線吸収材料、抗菌材料、熱吸収材料、屈折率調整材料、滑り性付与材料、滑り性防止材料、蓄光性材料、偏光性材料、反射防止材料、拡散性材料などの機能性材料に類するものであってもよく、これらの1種又は複数種を組合せて使用することができる。
例えば、銀ペーストや銅ペーストなどの金属系導電性ペーストで回路印刷された部材に本発明の紫外線硬化型コーティング用樹脂組成物をコーティングした場合、例えば、硫黄粉を80℃環境に置いて発生するガスを充満させた雰囲気内に当該コーティング物を24時間投入した後の導電性回路の腐食に起因する変色を良好に抑制できるなど「Sガスバリア性」に驚くほど極めて有利に作用するとともに、「NC耐性」も良好であり、且つ、該コーティング物の基材が例えばPET基材であるような場合には「F成形性」もあるためフレキシブルな3次元形状を有する導電性回路物品を得ることも容易になる。
本発明の紫外線硬化型コーティング用樹脂組成物は[0045]記載のような電気・電子部品及び部材関係に総合的に極めて有利に活用できるとともに、人が触り「NC」が付着する機会が多い自動車等車両の内装部品であるメーター類やコントロールパネル類の物品にも有利に活用でき、特に当該物品に導電性回路部材が装着されていたり、窓外物品が3次元形状成形するものであったりする場合は「Sガスバリア性」と「F成形性」も含めて総合的に驚くほど極めて有利に活用できる。
続いて、作製した実施例及び比較例の紫外線硬化型コーティング用樹脂組成物それぞれを、導電性銀ペースト回路が線状に等間隔に施された厚み0.5mmの透明PC上に、T150メッシュ/インチのスクリーン刷版を用いて12×12cmの全ベタスクリーン印刷を行ってコーティングした。
続いて、前記コーティング工程を経たコーティング物を、ボックス式乾燥機80℃30分で加熱及び乾燥を行った。なお、この工程を経たコーティング塗膜の塗膜厚を測定したところ8~12μmであった。
続いて、前記加熱及び乾燥工程を経たコーティング物を、フォーミング成形したときに最大で250%の伸び率が生じる形状を有するテントウ虫形金型を真空圧空成形機に取り付けた後、当該コーティング物をフォーミング成形加工した。
続いて、3次元形状フォーミング成形工程を経たコーティング物品に、積算光量400mJ/cm2、ピーク照度400mW/cm2となる条件でメタルハライドランプ紫外線照射をして塗膜を最終的に硬化させた。
最終的に紫外線照射された3次元形状を有する本発明のコーティング物品において、250%の伸び率となった部分に「NC」を均一に手で塗り、80℃環境下に5時間放置したのち「NC」を水道水できれいに洗い落とし、当該部分に異常が発生していないかを目視で調べた。判定は下記の通りとし、◎と〇を合格レベルとした。
◎:4倍ルーペ観察で全く異常が観察されなかった。
〇:4倍ルーペ観察で微妙な曇りが観察された。
△:目視で曇りやツヤ変化が観察された。
×:目視でひび割れクラックや塗膜溶解や塗膜剥離などが観察された。
最終的に紫外線照射された3次元形状を有する本発明のコーティング物品において、250%の伸び率となった部分を含めて5×5cm角の試料チップとして切り取った。
次に、密閉可能なガラス瓶容器内に、0.5gの硫黄粉末を入れたアルミ製カップを置き、このカップの上にステンレス製の金網を乗せ、前記試料チップを、金網の上に本発明の紫外線硬化型コーティング用樹脂組成物の硬化膜が上になるように置いた。
次に、ガラス瓶容器を密閉し80℃で24時間保存した後に前記試料チップを取出し、導電性銀ペースト回路に腐食による変色等の異常がないかを目視で調べた。判定は下記の通りとし、◎と〇を合格レベルとした。
◎:4倍ルーペ観察で変色等異常は全く観察されなかった。
〇:4倍ルーペ観察で回路端部に微細な黒点の発生が観察された。
△:目視観察で認識できる黒色変色部分の存在が観察された。
×:目視観察で回路全体に黒色変色が観察された。
最終的に紫外線照射された3次元形状を有する本発明のコーティング物品において、250%の伸び率となったコーティング膜部分にクラックや割れ等の異常がないかを目視で調べた。判定は下記の通りとし、◎と〇を合格レベルとした。
◎:4倍ルーペ観察で全く異常が観察されなかった。
〇:4倍ルーペ観察で若干のツヤ変化が観察された。
△:目視観察でツヤ変化や曇りや微細な塗膜破れが観察された。
×:目視観察で顕著なひび割れクラックや塗膜破れが確認された。
◎:100枚目でレベリング、エッジの欠け等の不都合が全くなかった。
〇:90~99枚目で若干のレベリング不良やエッジの欠けが発生した。
△:80~89枚目で若干のレベリング不良やエッジに欠けが発生した。
×:79枚目に至る前にレベリング不良やエッジの欠けが発生した。
Claims (9)
- 紫外線硬化型コーティング用樹脂組成物であって、重量平均分子量が5000~70000であり、1分子あたりの(メタ)アクリレート官能基数が5~40であり、水酸基価が2~200mgKOH/gであり、ガラス転移温度が20~90℃である不飽和基含有アクリル樹脂、揮発性有機溶剤及び光重合開始剤を含有することを特徴とする紫外線硬化型コーティング用樹脂組成物。
- 前記紫外線硬化型コーティング樹脂組成物が、更にNCO重量%が6~24であるポリイソシアネートを前記アクリル樹脂100重量部に対して2.5~10重量部含有することを特徴とする請求項1記載の紫外線硬化型コーティング用樹脂組成物。
- 前記揮発性有機溶剤が、グリコール系溶剤、エステル系溶剤、ケトン系溶剤、多価アルコール系溶剤、芳香族炭化水素系溶剤のいずれか1種又はそれらの組合せであり、且つ、前記ポリイソシアネートがヘキサメチレンジイソシアネート、イソホロンジイシシアネートのいずれか1種又はそれらの組合せからなるポリイソシアネートであることを特徴とする請求項1又は2に記載の紫外線硬化型コーティング用樹脂組成物。
- 前記紫外線硬化型コーティング用樹脂組成物が、更に紫外線で架橋又は重合反応する光重合性低分子化合物を前記アクリル樹脂100重量部に対して80重量部以下で含有することを特徴とする請求項1~3のいずれかに記載の紫外線硬化型コーティング用樹脂組成物。
- 前記光重合性低分子化合物が、アクリロイルモルフォリン、ビニルカプロラクタム、エチルカルビトール(メタ)アクリレート、フェノキシエチル(メタ)アクリレート、イソボロニル(メタ)アクリレート、2-ヒドロキシエチルビニルエーテルから選ばれる1種又は2種以上であることを特徴とする請求項1~4のいずれかに記載の紫外線硬化型コーティング用樹脂組成物。
- 前記コーティング用樹脂組成物が、アクリル系高分子ポリマー添加剤及び/又はシリコン系添加剤を前記アクリル樹脂100重量部に対して10重量部以下含有することを特徴とする請求項1~5のいずれかに記載の紫外線硬化型コーティング用樹脂組成物。
- 前記コーティング用樹脂組成物が、耐薬品性、ガスバリア性又はフォーミング成形用の用途に用いられることを特徴とする請求項1~6のいずれかに記載の紫外線硬化型コーティング用樹脂組成物。
- 請求項1~7のいずれかに記載の紫外線硬化型コーティング用樹脂組成物をコーティングしたコーティング物品であって、コーティング工程、加熱及び乾燥工程、紫外線照射工程をこの順で施して作製したことを特徴とするコーティング物品。
- 請求項1~7のいずれかに記載の紫外線硬化型コーティング用樹脂組成物をコーティングした3次元形状を有するコーティング物品であって、コーティング工程、加熱及び乾燥工程、3次元形状フォーミング成形工程、紫外線照射工程をこの順で施して作製したことを特徴とする3次元形状を有するコーティング物品。
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JP2019167508A (ja) * | 2018-03-26 | 2019-10-03 | 三菱ケミカル株式会社 | 活性エネルギー線硬化性組成物及び金属成形物 |
WO2022168810A1 (ja) * | 2021-02-04 | 2022-08-11 | 三菱瓦斯化学株式会社 | 積層体及びその製造方法 |
JPWO2022168810A1 (ja) * | 2021-02-04 | 2022-08-11 | ||
WO2022168811A1 (ja) * | 2021-02-04 | 2022-08-11 | 三菱瓦斯化学株式会社 | 積層体及びその製造方法 |
JPWO2022168811A1 (ja) * | 2021-02-04 | 2022-08-11 | ||
JP7217388B2 (ja) | 2021-02-04 | 2023-02-02 | 三菱瓦斯化学株式会社 | 積層体及びその製造方法 |
JP7273252B2 (ja) | 2021-02-04 | 2023-05-12 | 三菱瓦斯化学株式会社 | 積層体及びその製造方法 |
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BR112016008600A2 (pt) | 2017-10-10 |
CN106332546B (zh) | 2018-05-25 |
CA2932925A1 (en) | 2016-08-09 |
JPWO2017056196A1 (ja) | 2017-10-05 |
EP3168267B1 (en) | 2019-03-13 |
JP5944608B1 (ja) | 2016-07-05 |
KR101706028B1 (ko) | 2017-02-10 |
CN106332546A (zh) | 2017-01-11 |
EP3168267A1 (en) | 2017-05-17 |
RU2610269C1 (ru) | 2017-02-08 |
TW201712079A (en) | 2017-04-01 |
PH12016500684A1 (en) | 2016-05-30 |
CA2932925C (en) | 2016-12-06 |
EP3168267A4 (en) | 2017-10-25 |
US20170247564A1 (en) | 2017-08-31 |
TWI561591B (ja) | 2016-12-11 |
PH12016500684B1 (en) | 2016-05-30 |
MX2016003984A (es) | 2017-05-04 |
US9926460B2 (en) | 2018-03-27 |
IL244774A (en) | 2017-04-30 |
IL244774A0 (en) | 2016-08-02 |
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