WO2020137132A1 - 樹脂組成物、インクジェット印刷用インク、及び、樹脂膜を有する物品 - Google Patents
樹脂組成物、インクジェット印刷用インク、及び、樹脂膜を有する物品 Download PDFInfo
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- WO2020137132A1 WO2020137132A1 PCT/JP2019/042223 JP2019042223W WO2020137132A1 WO 2020137132 A1 WO2020137132 A1 WO 2020137132A1 JP 2019042223 W JP2019042223 W JP 2019042223W WO 2020137132 A1 WO2020137132 A1 WO 2020137132A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
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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
- C08F290/08—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 side groups
- C08F290/14—Polymers provided for in subclass C08G
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
- C08L83/06—Polysiloxanes containing silicon bound to oxygen-containing 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
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
Definitions
- the present invention relates to an article having a resin composition, an ink for inkjet printing, and a resin film.
- a functional film may be provided on the surface of the substrate for various purposes.
- a light-shielding film is often provided on the surface of a front windshield as a base material (for example, Patent Document 1).
- one aspect of the present invention provides a novel resin composition capable of forming a resin film having excellent weather resistance or light resistance.
- One aspect of the present invention provides a resin composition containing (A) an acrylic polymer and (B) a polysiloxane compound.
- the polysiloxane compound has the following formula (1):
- a hydroxysiloxane unit represented by R 1 in the formula (1) represents an aryl group which may have a substituent or an aliphatic hydrocarbon group having 1 to 20 carbon atoms which may have a substituent.
- the resin composition may contain the acrylic polymer and the polysiloxane compound as separate compounds which are not bonded to each other. Alternatively, at least a part of the acrylic polymer in the resin composition may be bonded to the polysiloxane compound by a covalent bond.
- This resin composition can form a resin film having excellent weather resistance or light resistance.
- Another aspect of the present invention provides an inkjet printing ink comprising the above resin composition.
- Yet another aspect of the present invention provides an article including a base material and a resin film formed on the base material.
- the resin film is the resin composition or a cured product formed from the resin composition.
- a novel resin composition capable of forming a resin film having excellent weather resistance or light resistance is provided.
- (meth)acrylic acid means “acrylic acid” or “methacrylic acid”
- (meth)acryloyl group means “acryloyl group” or “methacryloyl group”.
- the resin composition according to one embodiment contains (A) an acrylic polymer and (B) a polysiloxane compound.
- This resin composition can be used, for example, to form a resin film that covers the surface of various base materials.
- the component (B) polysiloxane compound is a polymer having a polysiloxane chain containing a plurality of siloxane units. At least a part of the siloxane units constituting the polysiloxane compound has the following formula (1): Is a hydroxysiloxane unit represented by.
- R 1 represents an aryl group which may have a substituent or an aliphatic hydrocarbon group having 1 to 20 carbon atoms which may have a substituent.
- the resin composition according to one embodiment can form a cross-linked structure by a cross-linking reaction including a reaction of hydroxysiloxane units by heating, thereby forming a cured product. Since this crosslinking reaction proceeds at a relatively low temperature, the resin composition can be cured at a low temperature. When the resin composition is cured at a low temperature, the strain due to the difference in heat shrinkage hardly remains in the cured article.
- the aryl group as R 1 may be a phenyl group.
- the aliphatic hydrocarbon group as R 1 may be an alkyl group, an alkenyl group or an alkynyl group.
- the alkyl, alkenyl and alkynyl groups can be linear, branched or cyclic.
- alkyl group methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, hexadecyl group, Octadecyl group, eicosyl group, isopropyl group, isobutyl group, sec-butyl group, tert-butyl group, isopentyl group, neopentyl group, 1-methylbutyl group, isohexyl group, 2-methylhexyl group, cyclopentyl group, cyclohexyl group, 1- Examples thereof include an adamantyl group and a 2-norbornyl group.
- alkenyl group examples include a vinyl group, a 1-propenyl group, a 1-butenyl group, a 1-methyl-1-propenyl group, a 1-cyclopentenyl group, and a 1-cyclohexenyl group.
- alkynyl group examples include an ethynyl group, a 1-propynyl group, a 1-butynyl group, and a 1-octynyl group.
- R 1 may be a methyl group or a phenyl group.
- substituent that the aryl group or the aliphatic hydrocarbon group as R 1 may have include an alkyloxy group, a halogen atom (for example, a fluoro group), and an epoxy group.
- the polysiloxane compound can contain the above-mentioned hydroxysiloxane unit as a main constituent unit.
- the proportion of hydroxysiloxane units is 50 to 100 mol %, 60 to 100 mol %, 70 to 100 mol %, 80 to 100 mol %, or 90 based on the amount of all siloxane units constituting the polysiloxane compound. It may be up to 100 mol %.
- the polysiloxane compound contains a modified siloxane unit to which an acrylic polymer is bonded, the total ratio of the hydroxysiloxane unit and the modified siloxane unit may be within the above range.
- the component (A) acrylic polymer is a polymer mainly composed of monomer units derived from a monomer having a (meth)acryloyl group.
- Examples of the monomer having a (meth)acryloyl group include (meth)acrylic acid alkyl ester, (meth)acrylic acid hydroxyalkyl ester, (meth)acrylic acid glycidyl ester, polyalkylene glycol mono(meth)acrylate, and a terminal Polyalkylene glycol mono(meth)acrylate having an alkyl group or an aryl group, (meth)acrylic acid, ⁇ -(2-furyl)(meth)acrylic acid, ⁇ -styryl(meth)acrylic acid, (meth)acryloylmorpholine, It may be (meth)acrylamide or a combination thereof.
- alkyl (meth)acrylates include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, isobutyl (meth)acrylate, (meth) T-butyl acrylate, pentyl (meth)acrylate, hexyl (meth)acrylate, heptyl (meth)acrylate, octyl (meth)acrylate, lauryl (meth)acrylate, dodecyl (meth)acrylate, (meth ) Cetyl acrylate, stearyl (meth)acrylate, t-butylhexyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, cyclohexyl (meth)acrylate, and structural isomers thereof.
- the acrylic polymer may contain at least one of methyl (meth)acrylate and butyl (meth)acrylate as
- hydroxyalkyl (meth)acrylates include hydroxymethyl (meth)acrylate, hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, hydroxybutyl (meth)acrylate, and (meth)acrylic acid.
- examples include hydroxypentyl, hydroxyhexyl (meth)acrylate, hydroxyheptyl (meth)acrylate, hydroxyoctyl (meth)acrylate and structural isomers thereof.
- polyalkylene glycol mono(meth)acrylate examples include polyethylene glycol monoacrylate, polypropylene glycol monoacrylate, polyethylene glycol/polypropylene glycol monoacrylate, poly(ethylene glycol/tetramethylene glycol) monoacrylate, poly(propylene glycol/tetramethylene).
- Glycol) monoacrylate 2-hydroxyethyl methacrylate, polyethylene glycol monomethacrylate, hydroxypropyl methacrylate, polypropylene glycol monomethacrylate, polyethylene glycol/polypropylene glycol monomethacrylate, and poly(ethylene glycol/tetramethylene glycol) monomethacrylate.
- polyalkylene glycol mono(meth)acrylate having an alkyl group or an aryl group at the terminal examples include methoxy polyethylene glycol monoacrylate, octoxy polyethylene glycol/polypropylene glycol monoacrylate, lauroxy polyethylene glycol monoacrylate, stearoxy polyethylene glycol mono.
- the acrylic polymer may further contain a monomer unit derived from a monomer other than the monomer having a (meth)acryloyl group.
- the proportion of the monomer units derived from the monomer having a (meth)acryloyl group is 50 to 100% by mass and 60 to 100% by mass based on the total amount of the monomer units constituting the acrylic polymer. , 70 to 100% by mass, 80 to 100% by mass, or 90 to 100% by mass.
- Examples of the monomer other than the monomer having a (meth)acryloyl group include styrene; styrene derivatives such as ⁇ -methylstyrene, p-methylstyrene and p-ethylstyrene; acrylonitrile; vinyl-n-butyl ether and the like.
- Examples thereof include esters of vinyl alcohol; maleic acid, maleic acid monoester; and polymerizable organic carboxylic acids such as fumaric acid, cinnamic acid, ⁇ -cyanocinnamic acid, itaconic acid, crotonic acid, and propiolic acid.
- the acrylic polymer may have a carboxyl group.
- the acrylic polymer contains a monomer unit derived from (meth)acrylic acid alkyl ester and a monomer unit having a carboxyl group (for example, a monomer unit derived from (meth)acrylic acid). It may be a copolymer.
- the acid value of the acrylic polymer having a carboxyl group may be 20 mgKOH/g or more, 40 mgKOH/g or more, or 60 mgKOH/g or more from the viewpoint of the adhesiveness of the resin composition.
- the acid value of the acrylic polymer may be 250 mgKOH/g or less, 240 mgKOH/g or less, 230 mgKOH/g or less, or 220 mgKOH/g or less.
- the acid value of the acrylic polymer having a carboxyl group may be 20 mgKOH/g or more and 250 mgKOH/g or less, 240 mgKOH/g or less, 230 mgKOH/g or less, or 220 mgKOH/g or less, and 40 mgKOH/g.
- the acid value here means a value measured by the following method.
- A 10 ⁇ Vf ⁇ 56.1/(Wp ⁇ I)
- A represents an acid value (mgKOH/g)
- Vf represents a titration amount (mL) of a 0.1 N KOH aqueous solution
- Wp represents a mass (g) of the polymer solution
- the ratio (% by mass) of the nonvolatile components (binder polymer, acrylic polymer) is shown.
- the weight average molecular weight of the acrylic polymer may be 20,000 or more, or 25,000 or more.
- the weight average molecular weight of the acrylic polymer is 300,000 or less, 200,000 or less, 150,000 or less, 70,000 or less, or 60,000 or less, from the viewpoint of good dischargeability from a nozzle when the resin composition is used as an ink for inkjet printing. Good.
- the weight average molecular weight of the acrylic polymer may be 20,000 or more and 300,000 or less, 200,000 or less, 150,000 or less, 70,000 or less, or 60,000 or less, and 25,000 or more, 300,000 or less, 200,000 or less, 150,000 or less, 70,000 or less, or 60,000. It may be the following.
- the weight average molecular weight of the acrylic polymer here is a standard polystyrene conversion value measured by a gel permeation chromatography method.
- the acrylic polymer in the resin composition may be bound to the polysiloxane compound by a covalent bond. That is, the resin composition contains a polysiloxane compound having a polysiloxane chain and an acrylic polymer covalently bonded to the polysiloxane chain (hereinafter sometimes referred to as “acrylic polymer-modified polysiloxane compound”). Good.
- the resin composition may further contain a polysiloxane compound in which an acrylic polymer is not bound, an acrylic polymer in which a polysiloxane compound is not bound, or both of them.
- the acrylic polymer-modified polysiloxane compound includes, for example, the above-mentioned hydroxysiloxane unit and the following formula (2): And a modified siloxane unit represented by R 1 in formula (2) has the same meaning as R 1 in formula (1).
- R 2 represents a hydrogen atom or a methyl group
- L represents a divalent bonding group
- Q 1 and Q 2 are each independently a group forming an acrylic polymer with a monomer unit containing R 2 . Indicates.
- L is, for example, a divalent group having a silyloxy group, a divalent hydrocarbon group having 1 to 20 carbon atoms which may have a substituent, or an alkylene group which may have a substituent, and It may be a divalent group having 1 to 20 carbon atoms having an oxy group.
- substituent that the hydrocarbon group or alkylene group may have include an alkyloxy group, a halogen atom (for example, a fluoro group), and an epoxy group.
- the modified siloxane unit of the formula (2) is represented by the following formula (2a) or (2b).
- R 3 represents an aryl group which may have a substituent, or an aliphatic hydrocarbon group which may have a substituent and has 1 to 20 carbon atoms
- R 3 4 represents an alkyl group having 1 to 3 carbon atoms which may have a substituent
- R 5 represents a divalent aliphatic hydrocarbon group having 1 to 20 carbon atoms which may have a substituent.
- the modified siloxane unit may be a group represented by the formula (2a), in which p is 0 and q is 2.
- R 3 include the same as the above-mentioned specific examples given for R 1 in the formula (1).
- R 4 may be a methyl group or an ethyl group.
- the aliphatic hydrocarbon group as R 5 may be an alkylene group, an alkenylene group or an alkynylene group.
- the alkylene group, alkenylene group and alkynylene group can be linear, branched or cyclic.
- Specific examples of the divalent aliphatic hydrocarbon group as R 5 include those in which one hydrogen atom in the monovalent group exemplified as the aliphatic hydrocarbon group represented by R 1 is replaced with a bond.
- the ratio of the modified siloxane unit bonded with the alkyl polymer to the total amount of siloxane units constituting the acrylic polymer modified polysiloxane compound may be 15 mol% or more and 50 mol% or less, or 40 mol% or less, It may be 20 mol% or more and 50 mol% or less, or 40 mol% or less.
- the polysiloxane compound containing a hydroxysiloxane unit is, for example, a step of reacting a polysiloxane compound containing a siloxane unit having a hydrosilyl group and a compound having a hydroxy group in a solvent in the presence of a catalyst to thereby form a polysiloxane compound.
- the hydrogen atom of the hydrosilyl group is replaced with the hydroxyl group.
- the siloxane unit having a hydrosilyl group is represented by the following formula (3), for example.
- R 1 in the formula (3) has the same meaning as R 1 in the formula (1).
- the polysiloxane compound having a hydrosilyl group may be linear or cyclic.
- the polysiloxane compound having a hydrosilyl group has a functional group selected from a carbinol group, an amino group, a diamino group, a carboxy group, an acid anhydride group, a vinyl group, a mercapto group, an epoxy group, and a glycidyl group. Good.
- the compound having a hydroxy group may be water.
- Other compounds having a hydroxy group may be used together with water.
- Examples of other compounds having a hydroxy group include methanol, ethanol, n-propanol, isopropanol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, tert-butyl alcohol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether. , Ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, dipropylene glycol monomethyl ether, phenol, and cresol. These can be used alone or in combination of two or more.
- the compound having a hydroxy group may have a functional group other than the hydroxy group. Examples of such compounds include 2-hydroxyethyl (meth)acrylate, and 2,2,2-trifluoroethanol
- the solvent used for the reaction between the polysiloxane compound having a hydrosilyl group and the compound having a hydroxy group may be, for example, an alcohol, ester, lactone, ether, ketone, amide, hydrocarbon, or a combination thereof. ..
- the catalyst used for the reaction between the polysiloxane compound having a hydrosilyl group and the compound having a hydroxy group is a metal complex containing a ligand having a carbonyl group and a metal selected from tin, iron, nickel and ruthenium. May be Especially when a ruthenium complex is used, side reactions are unlikely to occur.
- the temperature of the reaction between the polysiloxane compound having a hydrosilyl group and the compound having a hydroxy group may be 5 to 120°C, or 50 to 90°C.
- the reaction time may be 1 to 120 hours, or 4 to 24 hours.
- the acrylic polymer-modified polysiloxane compound includes a step of introducing a (meth)acryloyl group into a polysiloxane compound having a hydroxysiloxane unit, a polysiloxane compound having a (meth)acryloyl group introduced, and a monomethacrylate having a (meth)acryloyl group. It can be obtained by a method including a step of producing an acrylic polymer by a polymerization reaction of a monomer mixture containing a monomer.
- the step of introducing a (meth)acryloyl group into a polysiloxane compound having a hydroxysiloxane unit includes, for example, a reaction between a hydroxysilyl group of the hydroxysiloxane unit and an alkoxysilane compound having a (meth)acryloyl group.
- a polysiloxane compound containing a modified siloxane unit represented by the following formula (5a) or (5b) is produced.
- R 1 in (5a) and (5b) R 2, R 3, R 4, R 5, p, q, r and s, R 1, R 2 in the formula (2a) and (2b), It is defined similarly to R 3 , R 4 , R 5 , p, q, r and s.
- alkoxysilane having a (meth)acryloyl group examples include 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropyltriethoxysilane, 3-methacryloxypropyldiethoxymethylsilane, 3-methacryloxypropyldimethoxymethylsilane, Mention may be made of 3-acryloxypropyltrimethoxysilane, 3-acryloxypropyltriethoxysilane, 3-acryloxypropyldiethoxymethylsilane and 3-acryloxypropyldimethoxymethylsilane.
- the reaction temperature may be 20 to 120° C., or 60 to 80° C.
- the reaction time may be 1 to 6 hours, Alternatively, it may be 1 to 4 hours.
- the acrylic polymer-modified polysiloxane compound can also be obtained by a method including a dehydration condensation reaction between a polysiloxane compound containing a siloxane unit having a hydrosilyl group and a (meth)acrylic acid hydroxyalkyl ester.
- a method including this reaction for example, an acrylic polymer-modified polysiloxane compound represented by the formula (2) and containing a modified siloxane unit in which L is an alkylene group is produced.
- An example of hydroxyalkyl (meth)acrylate ester is 2-hydroxyethyl (meth)acrylate.
- the polymerization reaction of the monomer mixture containing the (meth)acryloyl group-introduced polysiloxane compound and the monomer having the (meth)acryloyl group can be carried out in the presence of a suitable radical polymerization initiator.
- the amount of the radical polymerization initiator may be, for example, 0.01 to 3.0 parts by mass with respect to 100 parts by mass of the monomer mixture.
- the temperature of the polymerization reaction may be, for example, 30 to 90°C, or 30 to 70°C.
- the reaction time may be 1 to 12 hours.
- the monomer mixture used here can contain, for example, the compounds exemplified as the monomers constituting the acrylic polymer of the component (A).
- the content of the (A) acrylic polymer in the resin composition may be 10% by mass or more, 50% by mass or less, 40% by mass or less, 30% by mass based on the total mass of components other than the solvent described below. % Or less, 20% by mass or less, or 15% by mass or less.
- the content of the acrylic polymer may be 10% by mass or more and 50% by mass or less, 40% by mass or less, or 35% by mass or less, based on the total amount of the acrylic polymer and the polysiloxane compound, and 20% by mass. % To 50% by mass, 40% by mass or less, or 35% by mass or less.
- the content of the acrylic polymer is the amount of the acrylic polymer bonded to the polysiloxane compound (for example, a monomer unit containing R 2 in the formula (2), a portion corresponding to Q 1 and Q 2 ). Including quantity.
- the content of the (B) polysiloxane compound in the resin composition is 10% by mass or more and 50% by mass or less, 40% by mass or less, or 30% by mass or less based on the total mass of components other than the solvent described below. May be 20 mass% or more and 50 mass% or less, 40 mass% or less, or 30 mass% or less, 25 mass% or more and 50 mass% or less, 40 mass% or less, or 30 mass% or less May be
- the content of the polysiloxane compound is the amount of the acrylic polymer (for example, a monomer unit containing R 2 in the formula (2), a portion corresponding to Q 1 and Q 2 ) bonded to the polysiloxane compound. Does not include quantity.
- the resin composition may further contain a colorant.
- Colorants of various colors such as yellow, cyan, magenta and black can be adopted.
- the colorant may be a pigment such as an organic pigment or an inorganic pigment that is well dispersed in the resin composition and has excellent light resistance.
- organic pigments include dye lake pigments, azo-based, benzimidazolone-based, phthalocyanine-based, quinacridone-based, anthraquinone-based, dioxazine-based, indigo-based, thioindico-based, perylene-based, perinone-based, diketopyrrolopyrrole-based, Examples include isoindolinone-based, nitro-based, nitroso-based, anthraquinone-based, flavanthrone-based, quinophthalone-based, pyranthrone-based, and indanthrone-based pigments.
- the inorganic pigment include carbon black, titanium oxide, red iron oxide, graphite, iron black, chromium oxide green, and aluminum hydroxide.
- the average particle size of the pigment may be 10 to 300 nm, 10 to 250 nm, or 10 to 200 nm.
- the average particle size of the pigment is a zeta potential particle size distribution meter (manufactured by Otsuka Electronics Co., Ltd., ELSZ-2Plus, 0.5 mass% propylene glycol-1-monomethyl ether-2-acetate solution). Means the value measured by the method of measuring the number average diameter (d50).
- the resin composition When the resin composition is used for forming the light-shielding film, the resin composition may contain carbon black as a pigment (coloring material) that imparts light-shielding properties.
- carbon blacks examples include carbon blacks #2400, #2350, #2300, #2200, #1000, #980, #970, #960, #950, #900, #850 manufactured by Mitsubishi Chemical Corporation. , MCF88, #650, MA600, MA7, MA8, MA11, MA100, MA220, IL30B, IL31B, IL7B, IL11B, IL52B, #4000, #4010, #55, #52, #50, #47, #45, #.
- Diamond Black A Diamond Black N220M, Diamond Black N234, Diamond Black I, Diamond Black LI, Diamond Black II, Diamond Black 339, Diamond Black SH, Diamond Black SHA, Diamond Black LH, Diamond Black H, Diamond Black HA, Diamond Black SF, Diamond Black N550M, Diamond Black E, Diamond black G, diamond black R, diamond black N760M, diamond black LR; carbon black Thermax N990, N991, N907, N908, N990, N991, N908 manufactured by Cancarb Co.; carbon black Asahi #80 manufactured by Asahi Carbon Co., Ltd.
- the pigment that imparts the light-shielding property may be a combination of an inorganic pigment and an organic pigment.
- the following effects can be obtained by selecting an organic pigment that exhibits a complementary color to the inorganic pigment. For example, by combining carbon black and a blue organic pigment, the resin film can exhibit higher quality black.
- the content of the colorant (particularly pigment) may be 25 to 60% by mass based on the total mass of the components other than the solvent in the resin composition.
- the content of the colorant (or pigment) is 25% by mass or more, a resin film having a high optical density (OD value) is easily formed.
- the content of the colorant (or pigment) is 60% by mass or less, the adhesion of the resin film to the base material tends to be further improved.
- the resin composition may further contain a solvent.
- the resin composition containing a solvent may be referred to as a “resin composition solution”.
- the resin composition containing a solvent is used, for example, as an ink for inkjet printing.
- the content of the solvent may be 60 to 95 mass% based on the mass of the resin composition. When the content of the solvent is 60% by mass or more, particularly good inkjet ejection property tends to be easily obtained. When the content of the solvent is 95% by mass or less, a resin film having a sufficiently dark color tends to be easily formed.
- the solvent examples include glycol ether (ethylene glycol monoalkyl ether, propylene glycol monoalkyl ether, etc.), ketone (acetone, methyl ethyl ketone, methyl-n-propyl ketone, methyl-iso-propyl ketone, methyl-n-butyl ketone, methyl).
- glycol ether ethylene glycol monoalkyl ether, propylene glycol monoalkyl ether, etc.
- ketone acetone, methyl ethyl ketone, methyl-n-propyl ketone, methyl-iso-propyl ketone, methyl-n-butyl ketone, methyl).
- the solvent may contain at least one selected from acetic ester (acetic ester solvent), glycol ether (glycol ether solvent) and glycol ester (glycol ester solvent) as a main component.
- the main component usually means a component accounting for 50% by mass or more of the total amount of the solvent.
- the solvent may contain glycol ether, glycol ester, or a combination thereof as a main component.
- Examples of acetate include methyl acetate, ethyl acetate, propyl acetate, iso-propyl acetate, butyl acetate, iso-butyl acetate, sec-butyl acetate, n-pentyl acetate, sec-pentyl acetate, 3-methoxybutyl acetate, Mention may be made of methylpentyl acetate, 2-ethylbutyl acetate, 2-ethylhexyl acetate, benzyl acetate, cyclohexyl acetate, methylcyclohexyl acetate, nonyl acetate, methyl acetoacetate and ethyl acetoacetate.
- glycol ethers are ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, propylene glycol monomethyl ether, propylene glycol.
- Glycol monoalkyl ethers such as monoethyl ether, propylene glycol monopropyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether; ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol di-n-propyl ether, ethylene glycol di Butyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol methyl mono-n-propyl ether, diethylene glycol methyl mono-n-butyl ether, diethylene glycol di-n-propyl ether, diethylene glycol di-n-butyl ether, diethylene glycol methyl mono- n-hexyl ether, triethylene glycol dimethyl ether, triethylene glycol diethyl ether, triethylene glycol methyl ethyl ether, triethylene glycol methyl
- glycol esters examples include ethylene glycol methyl ether propionate, ethylene glycol ethyl ether propionate, ethylene glycol methyl ether acetate, ethylene glycol ethyl ether acetate, diethylene glycol methyl ether acetate, diethylene glycol ethyl ether acetate, diethylene glycol-n-butyl ether.
- alkylene glycol alkyl ether acetates such as acetate, propylene glycol methyl ether acetate, propylene glycol ethyl ether acetate, propylene glycol propyl ether acetate, dipropylene glycol methyl ether acetate and dipropylene glycol ethyl ether acetate.
- the resin composition may further contain a silane coupling agent.
- the resin composition containing the silane coupling agent can form a resin film having higher adhesiveness with the substrate.
- the silane coupling agent is, for example, an alkylsilane, an alkoxysilane, a vinylsilane, an epoxysilane, an aminosilane, an acryloylsilane, a methacryloylsilane, a mercaptosilane, a sulfide silane, an isocyanate silane, a sulfur silane, a styrylsilane, an alkylchlorosilane, or a combination thereof. It may be.
- silane coupling agents include methyltrimethoxysilane, dimethyldimethoxysilane, trimethylmethoxysilane, methyltriethoxysilane, methyltriphenoxysilane, ethyltrimethoxysilane, n-propyltrimethoxysilane, diisopropyldimethoxysilane, isobutyltrisilane.
- the silane coupling agent may have an epoxy group.
- the silane coupling agent having an epoxy group contributes to improving the adhesion of the resin film to the base material.
- Examples of the silane coupling agent having an epoxy group include ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropyltriethoxysilane, ⁇ -glycidoxypropylmethyldimethoxysilane, ⁇ -glycidoxypropylmethyl Examples include diethoxysilane and ⁇ -(3,4-epoxycyclohexyl)ethyltrimethoxysilane.
- the content of the silane coupling agent may be 0 to 10% by mass based on the total mass of components other than the solvent in the resin composition. This tends to further improve the adhesion of the resin film formed of the resin composition to the base material.
- the resin composition may further contain a pigment dispersant for the purpose of improving the dispersibility of the pigment and the storage stability of the resin composition.
- the pigment dispersant can be selected from those commonly used in the field of ink without particular limitation, but it may be a polymer dispersant.
- polymer dispersant for example, a carbodiimide dispersant, a polyesteramine dispersant, a fatty acid amine dispersant, a modified polyacrylate dispersant, a modified polyurethane dispersant, a multi-chain polymer nonionic dispersant, Examples thereof include polymeric ion activators, cationic group-containing acrylic polymer-based dispersants, and nitrogen-containing graft polymer dispersants. These pigment dispersants can be used alone or in combination of two or more.
- pigment dispersants examples include pigment dispersants (Anti-Terra-U, DISPERBYK-101, 103, 106, 110, 161, 162, 164, 166, 167, 168, 170, manufactured by Big Chemie Japan Co., Ltd.). 174, 182, 184 or 2020), a pigment dispersant manufactured by Ajinomoto Fine-Techno Co., Inc. (Addisper PB711, PB821, PB814, PN411, PA111, etc.), a pigment dispersant manufactured by Kyoeisha Chemical Co., Ltd. (Floren DOPA-15B, 15BHFS).
- pigment dispersant manufactured by Lubrizol (Solspers 5000, 12000, 32000, 33000, 39000, etc.). These pigment dispersants may be used alone or in combination of two or more kinds.
- the content of the pigment dispersant is not particularly limited, but may be 0 to 20 mass% based on the mass of the resin composition.
- the article according to one embodiment includes a base material and a resin film formed on the base material.
- the resin film is the resin composition according to the above embodiment or a cured product formed from the resin composition.
- the resin film may be a colored film or a light-shielding film.
- the resin film used as the light-shielding film may be a windshield for an automobile windshield or rear glass.
- the article is a window glass 5 having a glass substrate 1 as a substrate and a light-shielding film 3 formed on the glass substrate 1 (for example, front windshield or Rear windshield).
- the glass substrate 1 may be a plate-shaped glass member such as laminated glass.
- the resin film may be a black matrix for an image display device.
- the base material may be appropriately selected according to the type and use of the article, but may be, for example, a glass plate.
- the article having a glass plate as a base material can be, for example, a window glass of a vehicle or the like.
- the thickness of the resin film may be appropriately adjusted according to the type of article, the function of the resin film, or the like.
- the thickness of the resin film may be 2 ⁇ m or more and 15 ⁇ m or less, 10 ⁇ m or less, or 6 ⁇ m or less, and may be 3 ⁇ m or more and 15 ⁇ m or less, 10 ⁇ m or less, or 6 ⁇ m or less.
- the article having a resin film is, for example, a step of forming a resin film made of a resin composition that covers at least a part of the surface of a base material, and curing the resin film by heating or the like, whereby a cured product of the resin composition.
- a step of forming a resin film which is The resin film may be formed by printing using the resin composition as an ink for inkjet printing.
- the heating temperature for curing the resin film may be adjusted within a range in which the curing reaction appropriately proceeds, but can be, for example, 200° C. or lower. By curing the resin film at such a relatively low temperature, it is possible to suppress the occurrence of strain due to the difference in thermal shrinkage.
- the heating temperature may be 80°C or higher, or 100°C or higher.
- the reaction solution was further stirred at 100° C. ⁇ 2° C. for 2 hours to allow the polymerization reaction to proceed to obtain a solution containing the acrylic polymer A1 having a carboxyl group.
- the concentration of the acrylic polymer A1 was 50% by mass.
- Table 1 shows the weight average molecular weight of the acrylic polymer A1.
- the weight average molecular weight of the acrylic polymer A1 is a value obtained by conversion using a calibration curve of standard polystyrene, which is measured by a gel permeation chromatography method. The same applies to the weight average molecular weight of other acrylic polymers.
- Acrylic polymers A2, A3 and A4 Acrylic polymers A2, A3 having a carboxyl group were prepared in the same manner as in the synthesis of the acrylic polymer A1 except that the amounts of the monomer and 2,2′-azobis(isobutyronitrile) were changed as shown in Table 1. A solution of A4 (concentration of acrylic polymer: 50% by mass) was obtained.
- (B) Polysiloxane Compound/Silicone Resin B1 A polysiloxane compound composed of the hydroxysiloxane unit of the formula (1) (R 1 is a methyl group) was synthesized by the following method. First, the inside of a three-necked flask having a volume of 2000 mL was sufficiently filled with nitrogen.
- Silicone resin B2 an acrylic polymer modified polysiloxane compound (ratio of modified siloxane units: 30 mass) composed of a hydroxysiloxane unit of formula (1) (R 1 is a methyl group) and a modified siloxane unit of formula (2).
- acrylic polymer copolymer having a copolymerization ratio of methyl methacrylate/butyl acrylate of 3/1 (mass ratio)) was synthesized by the following method.
- the polyhydroxysiloxane compound obtained by the synthesis of the above silicone resin B1 was divided into 1000 g, and 10 g of methacryloyloxypropyltrimethoxysilane (KBM-503, manufactured by Shin-Etsu Chemical Co., Ltd.) was added thereto, and the mixture was refluxed at 60°C. While stirring, the mixture was heated and stirred. After 1 hour, the reaction solution was heated to 75° C., and a mixture of butyl acrylate (66.0 g), methyl methacrylate (22.0 g) and azobisisobutyronitrile (2.1 g) was added over 30 minutes using a dropping funnel. Dropped.
- Resin composition solution The above materials were mixed in the ratio (parts by mass) shown in Table 2. The mixture was stirred for 15 minutes to obtain resin composition solutions of Examples and Comparative Examples for forming a resin film.
- the amount of each component is the amount (parts by mass) of the component (solid content) excluding the solvent.
- the "other solvent” in the table indicates the total amount of the solvent contained in each component before mixing.
- a soda glass plate (manufactured by Osaka Glass Industry Co., Ltd., trade name soda lime glass, size: 100 mm x 100 mm x thickness 0.8 mm) was prepared as a substrate. The surface of the substrate was wiped with a cloth soaked with ethanol, then with a cloth soaked with acetone, and then air dried. Each resin composition solution was uniformly applied to the dried substrate surface using a bar coater #4. The resin film formed by coating was cured by heating in a hot air convection dryer at 140° C. for 60 minutes to obtain a test piece for evaluation having a cured resin film having a thickness of 5 ⁇ m.
- Optical density of resin film (OD value) The optical density (OD value) of the resin film was measured using a transmission densitometer (manufactured by Ihara Denshi Kogyo Co., Ltd., trade name "Black and White Transmission Densitometer TM-5").
- the area ratio of the portion remaining in the state of being adhered to the substrate was measured, and the crosscut adhesion was evaluated according to the following ratings.
- D 35 to 65% of the total area of the cross-cut portion remains in close contact with the base material.
- E 0 to 35% of the total area of the cross-cut portion remains in close contact with the base material.
- Inkjet Discharge Property of Resin Composition Solution SL-128 (an inkjet head manufactured by Fuji Film Dimatix) was prepared as an inkjet element. This inkjet device was filled with a resin composition solution as a printing ink, and an inkjet discharge test was performed. The ejection state of the resin composition solution was observed, and the inkjet ejection test was evaluated according to the following ratings. A: Good (ink is ejected normally) B: defective (ink dripping, occurrence of ink scattering and blurring due to inconsistent particle size of continuous droplets, nozzle clogging and printing ink not ejected normally, or ink not ejected continuously .)
- the resin film formed by the resin composition of the example containing the acrylic polymer and the polysiloxane compound containing the hydroxysiloxane unit showed a sufficiently small change in chromaticity in the weather resistance test.
- the resin film formed by the resin composition of each example was also excellent in optical density and adhesiveness.
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Abstract
Description
一実施形態に係る樹脂組成物は、(A)アクリル重合体と、(B)ポリシロキサン化合物とを含有する。この樹脂組成物は、例えば、各種の基材の表面を覆う樹脂膜を形成するために用いることができる。
(B)成分のポリシロキサン化合物は、複数のシロキサン単位を含むポリシロキサン鎖を有する重合体である。ポリシロキサン化合物を構成するシロキサン単位のうち少なくとも一部が、下記式(1):
A=10×Vf×56.1/(Wp×I)
式中、Aは酸価(mgKOH/g)を示し、Vfは0.1NのKOH水溶液の滴定量(mL)を示し、Wpは重合体溶液の質量(g)を示し、重合体溶液中の不揮発分(バインダーポリマー、アクリル重合体)の割合(質量%)を示す。
樹脂組成物は、着色剤を更に含有してもよい。イエロー、シアン、マゼンダ、ブラック等の様々な色の着色剤を採用することができる。着色剤は、樹脂組成物に良好に分散し、耐光性の優れた有機顔料又は無機顔料のような顔料であってもよい。
樹脂組成物は、溶剤を更に含有してもよい。本明細書において、溶剤を含有する樹脂組成物は、「樹脂組成物溶液」ということがある。溶剤を含有する樹脂組成物は、例えば、インクジェット印刷用インクとして用いられる。溶剤の含有量は、樹脂組成物の質量を基準として、60~95質量%であってもよい。溶剤の含有量が60質量%以上であると、特に良好なインクジェット吐出性が得られ易い傾向がある。溶剤の含有量が95質量%以下であると、十分に濃い色味を有する樹脂膜が形成され易い傾向がある。
樹脂組成物は、シランカップリング剤を更に含有してもよい。シランカップリング剤を含有する樹脂組成物は、基材とのより一層高い密着性を有する樹脂膜を形成することができる。
顔料の分散性向上、及び樹脂組成物の保存安定性向上等の目的で、樹脂組成物が顔料分散剤を更に含有してもよい。顔料分散剤は、インクの分野において通常使用されているものから特に制限なく選択できるが、高分子分散剤であってもよい。
一実施形態に係る物品は、基材と、該基材上に形成された樹脂膜とを備える。樹脂膜は、上記実施形態に係る樹脂組成物、又はこれから形成された硬化物である。樹脂膜は、着色した膜であってもよく、遮光膜であってもよい。遮光膜として用いられる樹脂膜は、自動車のフロントガラス又はリアガラス用のウインドシールドであってもよい。言い換えると、物品が、図1に例示されるような、基材としてのガラス基材1と、ガラス基材1上に形成された遮光膜3とを有するウインドガラス5(例えば、フロントウインドグラス又はリアウインドグラス)であってもよい。ガラス基材1は、合わせガラス等の板状のガラス部材であってもよい。あるいは、樹脂膜が画像表示装置用のブラックマトリックスであってもよい。
(A)アクリル重合体
アクリル重合体A1
撹拌機、還流冷却機、不活性ガス導入口及び温度計を備えたフラスコに、100質量部のプロピレングリコールモノメチルエーテルアセテートを入れた。フラスコ内の液を、窒素ガス雰囲気下で100℃に昇温した。そこに、12質量部のメタクリル酸、58質量部のメタクリル酸メチル、30質量部のアクリル酸エチル、及び1.8質量部の2,2’-アゾビス(イソブチロニトリル)の混合物を、反応溶液の温度を100℃±2℃に保ちながら、2.5時間かけて均一に滴下した。滴下後、反応溶液を100℃±2℃で更に2時間撹拌することによって重合反応を進行させて、カルボキシル基を有するアクリル重合体A1を含む溶液を得た。アクリル重合体A1の濃度は50質量%であった。アクリル重合体A1の重量平均分子量を表1に示す。アクリル重合体A1の重量平均分子量は、ゲルパーミエーションクロマトグラフィー法によって測定される、標準ポリスチレンの検量線を用いて換算して得られる値である。他のアクリル重合体の重量平均分子量も同様である。
モノマー及び2,2’-アゾビス(イソブチロニトリル)の量を表1に示すように変更したこと以外はアクリル重合体A1の合成と同様にして、カルボキシル基を有するアクリル重合体A2、A3及びA4の溶液(アクリル重合体の濃度:50質量%)を得た。
・シリコーン樹脂B1:式(1)のヒドロキシシロキサン単位(R1はメチル基)から構成されるポリシロキサン化合物を以下の方法で合成した。
まず、容積2000mLの3つ口フラスコ内を窒素で十分に満たした。次いで、3つ口フラスコ内にポリメチル水素シロキサン(KF-99、信越化学工業(株)製)500g、エタノール(和光純薬工業(株)製)500g、イオン交換水335g、ルテニウムドデカカルボニル((株)フルヤ金属製)0.2gを投入した。その後、還流操作を行いながら加熱攪拌を行った。6時間後にサンプリングを行い、FT-IRスペクトル測定にて2200cm-1のSi-H由来のピークが消失していることを確認した。すなわち、ポリヒドロキシシロキサン化合物が生成されていることを確認した。
・シリコーン樹脂B2:式(1)のヒドロキシシロキサン単位(R1はメチル基)、及び式(2)の変性シロキサン単位から構成されるアクリル重合体変性ポリシロキサン化合物(変性シロキサン単位の比率:30質量%、アクリル重合体:メタクリル酸メチル/アクリル酸ブチルの共重合比が3/1(質量比)である共重合体)を以下の方法で合成した。
上記シリコーン樹脂B1の合成にて得られたポリヒドロキシシロキサン化合物を1000g分けとり、そこにメタクリロイルオキシプロピルトリメトキシシラン(KBM-503、信越化学工業(株)製)10gを加え、60℃で還流操作を行いながら加熱攪拌を行った。1時間後、反応液を75℃に加熱し、アクリル酸ブチル66.0g、メタクリル酸メチル22.0g、及びアゾビスイソブチロニトリル2.1gの混合物を、滴下漏斗を用いて30分かけて滴下した。以上のようにして、アクリル重合体変性ポリシロキサン化合物を含む組成物である単黄色のワニスを得た。
(C)顔料
・SF BLACK AG4306:カーボンブラック組成物(カーボンブラック含有量30~40質量%、山陽色素株式会社製)
・SF BLACK AD4179:カーボンブラック組成物(カーボンブラック含有量30~40質量%、山陽色素株式会社製)
(D)溶剤
・PGMEA:プロピレングリコールモノメチルエーテルアセテート(三協化学株式会社製)
・EDGAC:ジエチレングリコールモノエチルエーテルアセテート(株式会社ダイセル製)
(E)シランカップリング剤
・KBM-403:3-グリシドキシプロピルトリメトキシシラン(信越化学工業株式会社製)
・BYK-333:ポリエーテル変性ポリジメチルシロキサンとポリエーテルの混合物(ビックケミー・ジャパン株式会社製)
上記材料を表2に示す比(質量部)で混合した。混合物を15分間攪拌して、樹脂膜を形成するための実施例及び比較例の樹脂組成物溶液を得た。それぞれの成分の量は、溶媒を除いた成分(固形分)の量(質量部)である。表中の「その他の溶剤」は、混合前の各成分に含まれていた溶剤の合計量を示す。
基材として、ソーダガラス板(大阪硝子工業株式会社製、商品名ソーダライムガラス、サイズ:100mm×100mm×厚み0.8mm)を準備した。基材の表面を、エタノールが浸み込んだ布で拭き、次いでアセトンが浸み込んだ布で拭き、その後、空気乾燥させた。乾燥後の基材表面に、各樹脂組成物溶液をバーコーター#4を用いて均一に塗布した。塗布により形成された樹脂膜を140℃の熱風対流式乾燥機中で60分間の加熱により硬化させて、厚さ5μmの硬化した樹脂膜を有する評価用試験片を得た。
4-1.樹脂膜の光学濃度(OD値)
樹脂膜の光学濃度(OD値)を、透過濃度計(伊原電子工業株式会社製、商品名「白黒透過濃度計 TM-5」)を使用して測定した。
(1)初期
JIS規格(K5400:塗料一般試験方法[K5600])を参考にして、100マスのクロスカット試験を実施した。樹脂膜の試験面に、カッターナイフを用いて1×1mm四方の碁盤目の切り傷を入れた。樹脂膜の碁盤目部分にメンディングテープ#810(スリーエムジャパン株式会社製)を強く圧着させた。メンディングテープの端をほぼ0°の角度で引っ張ることで、メンディングテープを樹脂膜からゆっくりと引き剥がした。その後、樹脂膜の碁盤目部分の全面積のうち基材に密着した状態で残っている部分の面積比率を測定し、以下の評点に従ってクロスカット密着性を評価した。
A : 碁盤目部分の全面積(ほぼ100%)が基材に密着している。
B : 碁盤目部分の全面積のうち95%以上が基材に密着して残っている。
C : 碁盤目部分の全面積のうち65~95%が基材に密着して残っている。
D : 碁盤目部分の全面積うち35~65%が基材に密着して残っている。
E : 碁盤目部分の全面積のうち0~35%が基材に密着して残っている。
基材及び樹脂膜を有する評価用試験片を、90℃に温めた純水中に1時間放置した。試験片を取り上げた後、水分をよくふき取った。その後、上記と同様のクロスカット試験により、樹脂膜の密着性を評価した。
基材及び樹脂膜を有する評価用試験片を、-40℃の雰囲気下で30分間の加熱、次いで100℃の雰囲気下で30分間の加熱で構成されるヒートサイクルを100回繰り返す冷熱サイクル試験に供した。その後、上記と同様のクロスカット試験により、樹脂膜の密着性を評価した。
基材及び樹脂膜を有する評価用試験片を、120℃の恒温槽中で300時間加熱する耐熱性試験に供した。その後、上記と同様のクロスカット試験により、樹脂膜の密着性を評価した。
基材及び樹脂膜を有する評価用試験片を、促進耐候性試験機(スガ試験機株式会社製、スーパーキセノンウェザーメーターSX75)のサンプルホルダーに固定した。その状態で、試験片を、光源をキセノンロングライフアークランプ、照射強度を180W/m2(λ=300~400nm)、温度を63℃、湿度を50%RH、試験時間を300時間とする耐候性試験に供した。その後、上記と同様のクロスカット試験により、樹脂膜の密着性を評価した。
上記の耐候性試験前後の樹脂膜の色度(L*、a*、b*)を、分光色差計(SD6000、日本電色工業株式会社製)を用いて測定した。耐候性試験前後の色度変化(ΔE*ab)を、下記の式(I)により求めた。
ΔE*ab={(ΔL*)2+(Δa*)2+(Δb*)2}1/2 (I)
インクジェット素子として、SL-128(富士フィルムDimatix社製インクジェットヘッド)を準備した。このインクジェット素子に、樹脂組成物溶液を印刷用インクとして充填し、インクジェット吐出試験を実施した。樹脂組成物溶液の吐出状態を観察し、以下の評点に従ってインクジェット吐出試験を評価した。
A : 良好(インクが正常に吐出される。)
B : 不良(インク垂れ、連続する液滴の粒径が揃わないことによるインクの飛び散り及びかすれの発生、ノズルの詰まりが発生して印刷インクが正常に吐出されない、又は連続してインクが吐出されない。)
Claims (8)
- 着色剤を更に含有する、請求項1~3のいずれか一項に記載の樹脂組成物。
- 溶剤を更に含有する、請求項1~4のいずれか一項に記載の樹脂組成物。
- 請求項5に記載の樹脂組成物からなるインクジェット印刷用インク。
- 基材と、該基材上に形成された樹脂膜と、を備え、
前記樹脂膜が、請求項1~5のいずれか一項に記載の樹脂組成物、又は前記樹脂組成物から形成された硬化物である、物品。 - 前記基材がガラス基材で、前記樹脂膜が遮光膜で、当該物品がウインドガラスである、請求項7に記載の物品。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10183064A (ja) * | 1996-11-07 | 1998-07-07 | Shin Etsu Chem Co Ltd | シリコーン樹脂含有エマルジョン組成物及びその製造方法並びに該組成物の硬化被膜を有する物品 |
JP2000169710A (ja) * | 1998-12-03 | 2000-06-20 | Shin Etsu Chem Co Ltd | シリコーン樹脂含有エマルジョン組成物及び該組成物の硬化被膜を有する物品 |
JP2004292640A (ja) * | 2003-03-27 | 2004-10-21 | Shin Etsu Chem Co Ltd | 多孔質膜形成用組成物、多孔質膜の製造方法、多孔質膜、層間絶縁膜、及び半導体装置 |
JP2004292638A (ja) * | 2003-03-27 | 2004-10-21 | Shin Etsu Chem Co Ltd | 多孔質膜形成用組成物、多孔質膜の製造方法、多孔質膜、層間絶縁膜、及び半導体装置 |
WO2018155500A1 (ja) * | 2017-02-23 | 2018-08-30 | 日立化成株式会社 | インクジェット印刷用インク |
-
2019
- 2019-10-28 WO PCT/JP2019/042223 patent/WO2020137132A1/ja active Application Filing
- 2019-10-28 JP JP2020562860A patent/JPWO2020137132A1/ja active Pending
- 2019-10-30 TW TW108139175A patent/TW202026352A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10183064A (ja) * | 1996-11-07 | 1998-07-07 | Shin Etsu Chem Co Ltd | シリコーン樹脂含有エマルジョン組成物及びその製造方法並びに該組成物の硬化被膜を有する物品 |
JP2000169710A (ja) * | 1998-12-03 | 2000-06-20 | Shin Etsu Chem Co Ltd | シリコーン樹脂含有エマルジョン組成物及び該組成物の硬化被膜を有する物品 |
JP2004292640A (ja) * | 2003-03-27 | 2004-10-21 | Shin Etsu Chem Co Ltd | 多孔質膜形成用組成物、多孔質膜の製造方法、多孔質膜、層間絶縁膜、及び半導体装置 |
JP2004292638A (ja) * | 2003-03-27 | 2004-10-21 | Shin Etsu Chem Co Ltd | 多孔質膜形成用組成物、多孔質膜の製造方法、多孔質膜、層間絶縁膜、及び半導体装置 |
WO2018155500A1 (ja) * | 2017-02-23 | 2018-08-30 | 日立化成株式会社 | インクジェット印刷用インク |
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