WO2012173088A1 - 含フッ素硬化性樹脂、活性エネルギー線硬化性組成物及びその硬化物 - Google Patents
含フッ素硬化性樹脂、活性エネルギー線硬化性組成物及びその硬化物 Download PDFInfo
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- WO2012173088A1 WO2012173088A1 PCT/JP2012/064903 JP2012064903W WO2012173088A1 WO 2012173088 A1 WO2012173088 A1 WO 2012173088A1 JP 2012064903 W JP2012064903 W JP 2012064903W WO 2012173088 A1 WO2012173088 A1 WO 2012173088A1
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- acrylate
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Definitions
- the present invention can impart high antifouling property to the surface of the cured coating film even when it is cured by irradiation with active energy rays in an air atmosphere (in the presence of oxygen), and adheres to the surface of the cured coating film.
- the present invention relates to a fluorine-containing curable resin that can be used as a fluorine-based surface modifier that can maintain the antifouling property of the surface of a cured coating film even after wiping off dirt.
- the present invention also relates to an active energy ray-curable composition using the fluorine-containing curable resin and a cured product thereof.
- Fluorine-based surface modifier is an additive to be added to various paints and coating materials because it has excellent leveling, wettability, permeability, anti-blocking, slipperiness, water and oil repellency, and antifouling properties. Widely used.
- a cured coating film obtained by applying and curing an active energy ray-curable composition containing this fluorine-based surface modifier exhibits excellent surface properties.
- heating, humidification, exposure to chemicals such as acids and alkalis, cleaning to remove dirt, etc. make it easy for some of the fluorine-based surface modifiers to be detached or volatilized from the surface of the cured coating film.
- the production line is contaminated and the antifouling property of the coating film surface is lowered.
- a fluorine-containing curable resin having a polymerizable group polymerizable with other components therein has been proposed (see, for example, Patent Document 1).
- this fluorine-containing curable resin has a problem that it cannot exhibit sufficient antifouling properties when cured by irradiation with active energy rays in an air atmosphere (in the presence of oxygen).
- this fluorine-containing curable resin is inhibited from being polymerized by oxygen, the active energy ray-curable composition is cured when irradiated with active energy rays in an air atmosphere (in the presence of oxygen). Polymerization with other polymerizable components therein does not proceed sufficiently. Therefore, there has been a problem that the poly (perfluoroalkylene ether) chain cannot be sufficiently fixed on the surface of the cured coating film, and sufficient antifouling properties cannot be exhibited.
- fluorine-containing curable resin capable of imparting a high antifouling property to the surface of a cured coating film even when cured by irradiation with active energy rays in an air atmosphere
- poly (perfluoroalkylene ether) in the resin structure A fluorine-containing curable resin having a chain and a maleimide group has been proposed (for example, see Patent Document 2).
- the fluorine-containing curable resin proposed in Patent Document 2 exhibits the above-described effect by a crosslinking reaction of the maleimide group.
- the cured coating film of the active energy ray-curable composition containing the fluorine-containing curable resin described in Patent Document 2 as a surface modifier has reduced antifouling properties after wiping off once adhered dirt. There was still a problem.
- the problem to be solved by the present invention is that high antifouling property can be imparted to the surface of a cured coating film even when it is cured by irradiation with active energy rays in an air atmosphere (in the presence of oxygen) and cured.
- An object of the present invention is to provide a fluorine-containing curable resin capable of maintaining the antifouling property of the cured coating film surface even after wiping off the dirt adhering to the coating film surface.
- Another object of the present invention is to provide an active energy ray-curable composition capable of exhibiting excellent antifouling properties when cured in an air atmosphere using the fluorine-containing curable resin, and a cured product thereof.
- a poly (perfluoroalkylene ether) chain a maleimide group in the structure of a polymer of a monomer having a polymerizable unsaturated group or a urethane polymer.
- a fluorine-containing curable resin having a mercapto group or a compound containing the fluorine-containing curable resin as a fluorine-based surface modifier in an active energy ray curable composition can be suppressed, surface performance such as antifouling properties can be stably imparted to the coating surface, and excellent antifouling properties can be exhibited even when cured in an air atmosphere.
- the inventors have found that the antifouling property of the cured coating film surface can be maintained even after wiping off the dirt adhering to the cured coating film surface, and completed the present invention.
- the present invention is characterized by having a poly (perfluoroalkylene ether) chain, a maleimide group, and a mercapto group in the polymer structure of a monomer polymer or urethane polymer having a polymerizable unsaturated group.
- a fluorine-containing curable resin is provided.
- the present invention provides a cured product obtained by applying the fluorine-containing curable resin to a substrate and irradiating and curing the active energy ray, and an active energy ray-curable composition containing the fluorine-containing curable resin. And a cured product obtained by applying the coating composition to a substrate and irradiating it with an active energy ray to be cured.
- the fluorine-containing curable resin of the present invention imparts surface performance such as antifouling property to the cured coating film of the coating composition by blending it into the active energy ray-curable composition as a fluorine-based surface modifier. Can do.
- the fluorine-containing curable resin of the present invention imparts very stable surface performance such as antifouling property to the coating film surface even when cured by irradiation with ultraviolet rays in an air atmosphere (in the presence of oxygen). Can do.
- the antifouling property of the cured coating film surface can be maintained even after wiping off the dirt adhering to the cured coating film surface.
- the fluorine-containing curable resin of the present invention and the active energy ray-curable composition containing the fluorine-containing curable resin are used in a nitrogen atmosphere purged with nitrogen in order to exhaust air from the inside of a curing device that irradiates active energy rays such as ultraviolet rays.
- active energy rays such as ultraviolet rays.
- FIG. 1 is an IR spectrum chart of the fluorinated curable resin (1) obtained in Example 1.
- FIG. 2 is a 13 C-NMR chart of the fluorinated curable resin (1) obtained in Example 1.
- FIG. 3 is a GPC chart of the fluorinated curable resin (1) obtained in Example 1.
- the fluorine-containing curable resin of the present invention has a poly (perfluoroalkylene ether) chain, a maleimide group, and a mercapto group in a polymer structure of a monomer polymer having a polymerizable unsaturated group or a urethane polymer. It is. Among these, a fluorine-containing curable resin having a poly (perfluoroalkylene ether) chain, a maleimide group, and a mercapto group in the structure of a monomer polymer having a polymerizable unsaturated group is preferable.
- a fluorine-containing curable resin having a poly (perfluoroalkylene ether) chain, a maleimide group and a mercapto group in the polymer structure of a monomer polymer having a polymerizable unsaturated group will be described.
- this fluorine-containing curable resin production method has a polymer structure of a monomer having a polymerizable unsaturated group, and can produce a poly (perfluoroalkylene ether) chain, a maleimide group and a mercapto group, although not particularly limited, for example, a poly (perfluoroalkylene ether) chain, a monomer (A) having a polymerizable unsaturated group at both ends thereof, and a polymerizable unsaturation other than a maleimide group and a maleimide group Examples thereof include a method of copolymerizing a monomer (B) having a group as an essential monomer component in the presence of a polyfunctional thiol (C).
- the poly (perfluoroalkylene ether) chain which is a raw material for the fluorine-containing curable resin of the present invention, and the monomer (A) having a polymerizable unsaturated group at both ends thereof will be described.
- the poly (perfluoroalkylene ether) chain of the monomer (A) include those having a structure in which a divalent fluorocarbon group having 1 to 3 carbon atoms and oxygen atoms are alternately connected. It is done.
- the divalent fluorocarbon group having 1 to 3 carbon atoms may be one kind or a mixture of plural kinds. Specifically, those represented by the following structural formula (a1) may be used. Can be mentioned.
- X is the following structural formulas (a1-1) to (a1-5), and all X in the structural formula (a1) may have the same structure, Further, a plurality of structures may exist randomly or in a block shape. N is an integer of 1 or more representing the number of repeating units. ]
- the active energy ray-curable composition to which the fluorine-containing curable resin of the present invention is added has a good leveling property, and a smooth coating film can be obtained, so that the par represented by the structural formula (a1-1) can be obtained.
- the fluoromethylene structure and the perfluoroethylene structure represented by the structural formula (a1-2) coexist.
- the abundance ratio between the perfluoromethylene structure represented by the structural formula (a1-1) and the perfluoroethylene structure represented by the structural formula (a1-2) is a molar ratio [structure (a1- The ratio of 1) / structure (a1-2)] is preferably 1/10 to 10/1 from the viewpoint of leveling properties.
- the value of n in the structural formula (a1) is preferably in the range of 3 to 100, more preferably in the range of 6 to 70.
- the poly (perfluoroalkylene ether) chain is antifouling of the active energy ray-curable composition of the present invention and dissolved in the non-fluorinated material of the fluorine-containing curable resin of the present invention. Therefore, the total number of fluorine atoms contained in one poly (perfluoroalkylene ether) chain is preferably in the range of 18 to 200, more preferably in the range of 25 to 150.
- Examples of the method for producing the polymerizable monomer (A) include the following methods. First, as a raw material, a method using a compound having one hydroxyl group at both ends of a poly (perfluoroalkylene ether) chain can be mentioned. Specific examples are shown below. Method 1: A method obtained by dehydrochlorinating a (meth) acrylic acid chloride with respect to a compound having one hydroxyl group at both ends of a poly (perfluoroalkylene ether) chain. Method 2: A method obtained by dehydrating (meth) acrylic acid on a compound having one hydroxyl group at both ends of a poly (perfluoroalkylene ether) chain.
- Method 3 A method obtained by urethanizing 2- (meth) acryloyloxyethyl isocyanate to a compound having one hydroxyl group at both ends of a poly (perfluoroalkylene ether) chain.
- Method 4 A method obtained by esterifying itaconic anhydride to a compound having one hydroxyl group at both ends of a poly (perfluoroalkylene ether) chain.
- Method 5 A method obtained by dehydrochlorinating chloromethylstyrene with respect to a compound having one hydroxyl group at both ends of a poly (perfluoroalkylene ether) chain.
- Method 6 A method in which (meth) acrylic anhydride is esterified with a compound having one hydroxyl group at both ends of a poly (perfluoroalkylene ether) chain.
- Method 7 A method obtained by esterifying 4-hydroxybutyl (meth) acrylate glycidyl ether with a compound having one carboxyl group at both ends of a poly (perfluoroalkylene ether) chain.
- Method 8 A method obtained by esterifying glycidyl (meth) acrylate with a compound having one carboxyl group at both ends of a poly (perfluoroalkylene ether) chain.
- Method 9 A method obtained by reacting a compound having one isocyanate group at both ends of a poly (perfluoroalkylene ether) chain with 2-hydroxyethyl (meth) acrylate.
- Method 10 A method in which 2-hydroxyethyl (meth) acrylamide is reacted with a compound having one isocyanate group at both ends of a poly (perfluoroalkylene ether) chain.
- Method 11 A method in which (meth) acrylic acid is esterified with a compound having one epoxy group at both ends of a poly (perfluoroalkylene ether) chain.
- a method obtained by reacting with hydrochloric acid is particularly preferable in that it is easily obtained synthetically.
- Examples of the compound having a poly (perfluoroalkylene ether) chain used in producing the polymerizable monomer (A) are represented by the following general formulas (a2-1) to (a2-6). And a compound having a structure.
- “—PFPE—” represents the poly (perfluoroalkylene ether) chain.
- the polymerizable unsaturated groups having both ends of the poly (perfluoroalkylene ether) chain of the polymerizable monomer (A) are, for example, polymerizable unsaturated groups represented by the following structural formulas U-1 to U-5. The thing which has a saturated group is mentioned.
- the structural formula is derived from the ease of obtaining and producing the polymerizable monomer (A) itself, or the ease of copolymerization with the polymerizable monomer (B) described later.
- An acryloyloxy group represented by U-1, a methacryloyloxy group represented by Structural Formula U-2, and a styryl group represented by Structural Formula U-5 are preferred.
- (meth) acryloyl group means one or both of methacryloyl group and acryloyl group
- (meth) acrylate means one or both of methacrylate and acrylate
- (meth) “Acrylic acid” refers to one or both of methacrylic acid and acrylic acid.
- polymerizable monomer (A) examples include those represented by the following structural formulas (A-1) to (A-13).
- —PFPE— represents a poly (perfluoroalkylene ether) chain.
- the structural formula (A-1) having (meth) acryloyl groups at both ends of the poly (perfluoroalkylene ether) chain Those represented by (A-2), (A-5), (A-6), (A-11), (A-12) and (A-13) are preferred, and more durable after curing. From the viewpoint of improvement, those having a methacryloyl group or a styryl group at both ends of the poly (perfluoroalkylene ether) chain represented by the structural formulas (A-2) and (A-13) are more preferable.
- the monomer (B) having a maleimide group and a polymerizable unsaturated group other than the maleimide group will be described.
- the polymerizable unsaturated group other than the maleimide group that the monomer (B) has include a (meth) acryloyl group and a vinyl group.
- the polymerizable unsaturated group other than the maleimide group possessed by the monomer (B) is (meta ) An acryloyl group is preferred.
- the maleimide group of the monomer (B) is a copolymerization reaction between the monomer (A) and the monomer (B), and the carbon-carbon unsaturated double bond of the maleimide group
- Any carbon-carbon unsaturated dicarboxylic acid as represented by the following general formula (1) can be used as long as it does not participate in the polymerization reaction, that is, has no radical polymerizability in the copolymerization reaction.
- a disubstituted maleimide group in which a substituent such as an alkyl group is bonded to a carbon of a heavy bond is preferable.
- the fluorine-containing curable resin of the present invention which is an object, can be obtained.
- the maleimide group is a functional group that can be photocured by causing a photodimerization reaction upon irradiation with active energy rays, regardless of the presence of a photopolymerization initiator (F) described later.
- F photopolymerization initiator
- R 1 and R 2 are each independently an alkyl group having 1 to 6 carbon atoms, or a hydrocarbon in which R 1 and R 2 are combined to form a 5-membered or 6-membered ring. Represents a group.
- maleimide group represented by the general formula (1) include the following formulas (1-1) to (1-3).
- monomers (B) include monomers represented by the following formulas (B-1) to (B-6).
- the compound (A) and the monomer (B) are essential monomer components.
- a polymerizable unsaturated monomer may be used.
- examples of such other radically polymerizable unsaturated monomers include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, n-butyl (meth) acrylate, and isobutyl (meth).
- n-pentyl (meth) acrylate n-hexyl (meth) acrylate, n-heptyl (meth) acrylate, n-octyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, nonyl (meth) acrylate, decyl ( (Meth) acrylates such as (meth) acrylate, dodecyl (meth) acrylate, cyclohexyl (meth) acrylate, isobornyl (meth) acrylate, dicyclopentanyl (meth) acrylate, dicyclopentenyl (meth) acrylate;
- Aromatic vinyl compounds such as styrene, ⁇ -methylstyrene, p-methylstyrene, p-methoxystyrene; maleimide, N-methylmaleimide, N-ethylmaleimide, N-propylmaleimide, N-butylmaleimide, N-hexylmaleimide, And maleimide compounds such as N-octylmaleimide, N-dodecylmaleimide, N-stearylmaleimide, N-phenylmaleimide and N-cyclohexylmaleimide.
- polyfunctional thiol (C) examples include an ester compound (C-1) obtained by reacting a polyol (c-1) having three or more hydroxyl groups with a carboxylic acid (c-2) having a mercapto group. ) And the like.
- ester compound (C-1) include, for example, trimethylolpropane tristhioglycolate, pentaerythritol tetrakisthioglycolate, dipentaerythritol hexakisthioglycolate, trimethylolpropane tristhiopropionate, penta Erythritol tetrakisthiopropionate, dipentaerythritol hexakisthiopropionate, trimethylolpropane tris (3-mercaptobutyrate), pentaerythritol tetrakis (3-mercaptobutyrate), dipentaerythritol hexakis (3-mercaptobutyrate) Rate), tris (mercaptoglycoloxyethyl) isocyanurate, tris (mercaptopropyloxyethyl) isocyanurate, tris (3-merca) DOO butyloxye
- pentaerythritol tetrakis (3-mercaptobutyrate), pentaerythritol tetrakisthiopropionate, and tris (3-mercaptobutyloxyethyl) exhibit excellent antifouling properties even when cured in an air atmosphere.
- One or more compounds selected from the group consisting of isocyanurate and dipentaerythritol hexakisthiopropionate are preferred.
- the use amount of the polyfunctional thiol (C) is preferably in the range of 0.1 to 50 parts by mass, and 0.5 to 30 parts by mass with respect to 100 parts by mass in total of the monomers having polymerizable unsaturated groups.
- the range of 1 to 15 parts by mass is more preferable.
- the amount of the polyfunctional thiol (C) used is the monomer ( A range of 0.1 to 50 parts by mass is preferable with respect to a total of 100 parts by mass of A) and monomer (B), more preferably a range of 0.5 to 30 parts by mass, and a range of 1 to 15 parts by mass. Further preferred.
- the polyfunctional thiol (C) Is preferably in the range of 0.1 to 50 parts by mass with respect to 100 parts by mass in total of the monomer (A), the monomer (B) and other polymerizable unsaturated monomers.
- the range of 0.5 to 30 parts by mass is more preferable, and the range of 1 to 15 parts by mass is more preferable.
- the fluorine-containing curable resin of the present invention has a mercapto group.
- the polyfunctional thiol (C) is present, and this multifunctional Thiol (C) acts as a chain transfer agent. That is, hydrogen radicals are extracted from the mercapto group of the polyfunctional thiol (C) by radicals generated from the radical polymerization initiator or radicals at the end of the polymer chain generated by polymerization to generate thiyl radicals.
- the mercapto group becomes a site where the active energy ray can be cured, and its curability is not susceptible to curing inhibition even in an air atmosphere.
- a fluorine-containing curable resin that can be used as a fluorine-based surface modifier that can maintain the antifouling property of the surface of the cured coating film even after wiping off the dirt adhering to the surface of the cured coating film.
- the fluorine-containing curable resin of the present invention has a maleimide group.
- the maleimide group is cross-linked on the surface of the fluorine-containing curable resin layer by dimerization, and the mercapto group becomes a hardened product by cross-linking with another resin.
- Examples of the copolymerization method of the monomer (A), the monomer (B), and other polymerizable unsaturated monomers added as necessary include, for example, these monomer components in an organic solvent, Examples include a method of polymerizing in the presence of a radical polymerization initiator.
- organic solvent for example, ketone solvents, ester solvents, amide solvents, sulfoxide solvents, ether solvents, hydrocarbon solvents, and fluorine solvents are preferable.
- acetone methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, ethyl acetate, butyl acetate, propylene glycol monomethyl ether acetate, dimethylformamide, dimethylacetamide, N-methylpyrrolidone, dimethyl sulfoxide, diethyl ether, diisopropyl ether, tetrahydrofuran, dioxane Toluene, xylene, 1,3-bis (trifluoromethyl) benzene, and the like.
- These can be appropriately selected in consideration of boiling point, monomer solubility, and polymerizability.
- examples of the radical polymerization initiator used in the copolymerization include peroxides such as benzoyl peroxide and azo compounds such as azobisisobutyronitrile.
- the polymerization temperature is preferably set as appropriate according to the type of radical polymerization initiator used.
- a chain transfer agent such as lauryl mercaptan, 2-mercaptoethanol, thioglycerol, ethylthioglycolic acid, octylthioglycolic acid or the like can be used as necessary.
- Another fluorine-containing curable resin of the present invention is characterized by having a poly (perfluoroalkylene ether) chain, a maleimide group and a mercapto group in the polymer structure of the urethane polymer.
- a fluorinated curable resin is prepared, for example, by mixing a poly (perfluoroalkylene ether) chain, a compound having two hydroxyl groups, a maleimide group and a compound having two hydroxyl groups, and then adding two isocyanate groups. Obtained by reacting a polyfunctional thiol compound with an excess mole with respect to the NCO remaining at the terminal after performing a polyaddition reaction under the condition that the isocyanate group is excessive with respect to the hydroxyl group. Can do.
- the number average molecular weight (Mn) and the weight average molecular weight (Mw) of the fluorine-containing curable resin of the present invention have good compatibility with other compounding components when obtaining the active energy ray-curable composition of the present invention. Since a high leveling property can be realized, the number average molecular weight (Mn) is preferably in the range of 500 to 50,000, more preferably in the range of 1,500 to 20,000. The weight average molecular weight (Mw) is preferably in the range of 2,000 to 100,000, more preferably in the range of 3,000 to 50,000.
- the number average molecular weight (Mn) and the weight average molecular weight (Mw) are values converted to polystyrene based on gel permeation chromatography (hereinafter abbreviated as “GPC”) measurement.
- the measurement conditions for GPC are as follows.
- the fluorine-containing curable resin of the present invention can be used as a main component of the active energy ray curable composition itself, but has an extremely excellent surface modification performance, and therefore the active energy ray curable composition.
- a fluorine-based surface modifier to be added to the coating film, excellent antifouling properties can be imparted to the cured coating film.
- the active energy ray-curable composition of the present invention is a blend of the fluorine-containing curable resin of the present invention.
- the main component thereof is the active energy ray-curable resin (D) or active energy ray-curable property.
- the active energy ray curable resin (D) and the active energy ray curable monomer (E) may be used alone or in combination. It doesn't matter.
- the fluorine-containing curable resin of the present invention is preferably used as a fluorine-containing surface modifier in the active energy ray-curable composition.
- the active energy ray-curable resin (D) is a urethane (meth) acrylate resin, an unsaturated polyester resin, an epoxy (meth) acrylate resin, a polyester (meth) acrylate resin, an acrylic (meth) acrylate resin, or a resin having a maleimide group.
- a urethane (meth) acrylate resin is particularly preferable from the viewpoint of transparency and low shrinkage.
- the urethane (meth) acrylate resin used here is a resin having a urethane bond and a (meth) acryloyl group obtained by reacting an aliphatic polyisocyanate compound or an aromatic polyisocyanate compound with a (meth) acrylate compound having a hydroxyl group. Is mentioned.
- Examples of the aliphatic polyisocyanate compound include tetramethylene diisocyanate, pentamethylene diisocyanate, hexamethylene diisocyanate, heptamethylene diisocyanate, octamethylene diisocyanate, decamethylene diisocyanate, 2-methyl-1,5-pentane diisocyanate, 3-methyl- 1,5-pentane diisocyanate, dodecamethylene diisocyanate, 2-methylpentamethylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, isophorone diisocyanate, norbornane diisocyanate, hydrogenated diphenylmethane diisocyanate , Hydrogenated tolylene diisocyanate, hydrogenated xylylene Diisocyanate, hydrogenated tetramethylxylylene diisocyanate, cyclohexyl diisocyanate
- examples of the acrylate compound having a hydroxyl group include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, Monohydric alcohol mono (meth) acrylates such as 5-pentanediol mono (meth) acrylate, 1,6-hexanediol mono (meth) acrylate, neopentyl glycol mono (meth) acrylate, hydroxypivalate neopentyl glycol mono (meth) acrylate (Meth) acrylate; trimethylolpropane di (meth) acrylate, ethoxylated trimethylolpropane (meth) acrylate, propoxylated trimethylolpropane di (meth) acrylate, glycerin di (meth) Mono- or di (meth) acrylates of trivalent alcohol
- a compound having a group, or a polyfunctional (meth) acrylate having a hydroxyl group obtained by modifying the compound with ⁇ -caprolactone; dipropylene glycol mono (meth) acrylate, diethylene glycol mono (meth) acrylate, (Meth) acrylate compounds having an oxyalkylene chain such as propylene glycol mono (meth) acrylate and polyethylene glycol mono (meth) acrylate; polyethylene glycol-polypropylene glycol mono (meth) acrylate, polyoxybutylene-polyoxypropylene mono (meth) (Meth) acrylate compounds having block structure oxyalkylene chains such as acrylate; random structures such as poly (ethylene glycol-tetramethylene glycol) mono (meth) acrylate and poly (propylene glycol-tetramethylene glycol) mono (meth) acrylate And (meth) acrylate compounds having an oxyalkylene chain.
- urethanization catalysts that can be used here include amines such as pyridine, pyrrole, triethylamine, diethylamine, and dibutylamine, phosphines such as triphenylphosphine and triethylphosphine, dibutyltin dilaurate, octyltin trilaurate, and octyl.
- organotin compounds such as tin diacetate, dibutyltin diacetate, and tin octylate, and organometallic compounds such as zinc octylate.
- urethane acrylate resins those obtained by reacting an aliphatic polyisocyanate compound with a (meth) acrylate compound having a hydroxyl group are excellent in transparency of the cured coating film and have good sensitivity to active energy rays. It is preferable from the viewpoint of excellent curability.
- the unsaturated polyester resin is a curable resin obtained by polycondensation of ⁇ , ⁇ -unsaturated dibasic acid or its acid anhydride, aromatic saturated dibasic acid or its acid anhydride, and glycols.
- ⁇ , ⁇ -unsaturated dibasic acid or its acid anhydride include maleic acid, maleic anhydride, fumaric acid, itaconic acid, citraconic acid, chloromaleic acid, and esters thereof.
- aromatic saturated dibasic acid or acid anhydride thereof phthalic acid, phthalic anhydride, isophthalic acid, terephthalic acid, nitrophthalic acid, tetrahydrophthalic anhydride, endomethylenetetrahydrophthalic anhydride, halogenated phthalic anhydride and these Examples include esters.
- the aliphatic or alicyclic saturated dibasic acid include oxalic acid, malonic acid, succinic acid, adipic acid, sebacic acid, azelaic acid, glutaric acid, hexahydrophthalic anhydride, and esters thereof.
- glycols include ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, 1,3-butanediol, 1,4-butanediol, 2-methylpropane-1,3-diol, neopentyl glycol, triethylene glycol, Examples include tetraethylene glycol, 1,5-pentanediol, 1,6-hexanediol, bisphenol A, hydrogenated bisphenol A, ethylene glycol carbonate, 2,2-di- (4-hydroxypropoxydiphenyl) propane, etc.
- oxides such as ethylene oxide and propylene oxide can be used in the same manner.
- epoxy vinyl ester resin (meth) acrylic acid is reacted with an epoxy group of an epoxy resin such as a bisphenol A type epoxy resin, a bisphenol F type epoxy resin, a phenol novolac type epoxy resin, or a cresol novolak type epoxy resin. What is obtained is mentioned.
- an epoxy resin such as a bisphenol A type epoxy resin, a bisphenol F type epoxy resin, a phenol novolac type epoxy resin, or a cresol novolak type epoxy resin. What is obtained is mentioned.
- the resin having a maleimide group includes a bifunctional maleimide urethane compound obtained by urethanizing N-hydroxyethylmaleimide and isophorone diisocyanate, and a bifunctional maleimide ester compound obtained by esterifying maleimide acetic acid and polytetramethylene glycol.
- Examples thereof include tetrafunctional maleimide ester compounds obtained by esterification of maleimidocaproic acid and a tetraethylene oxide adduct of pentaerythritol, and polyfunctional maleimide ester compounds obtained by esterification of maleimide acetic acid and a polyhydric alcohol compound.
- These active energy ray-curable resins (D) can be used alone or in combination of two or more.
- Examples of the active energy ray-curable monomer (E) include ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, and a number average molecular weight in the range of 150 to 1,000.
- trimethylolpropane tri (meth) acrylate pentaerythritol tri (meth) acrylate, dipentaerythritol hexa (meth) acrylate, pentaerythritol tetra
- a trifunctional or higher polyfunctional (meth) acrylate such as (meth) acrylate is preferred.
- active energy ray-curable monomers (E) can be used alone or in combination of two or more.
- the amount used thereof is the active energy ray-curable resin (D) and the active energy. It is preferably in the range of 0.01 to 10 parts by mass, more preferably in the range of 0.1 to 5 parts by mass, with respect to 100 parts by mass in total of the linear curable monomer (E). If the amount of the fluorine-containing curable resin of the present invention is in this range, the leveling property, water / oil repellency and antifouling property can be made sufficient, and the hardness and transparency after curing of the composition can be achieved. Can also be sufficient.
- the fluorine-containing curable resin or active energy ray-curable composition of the present invention can be formed into a cured coating film by irradiating active energy rays after being applied to a substrate.
- the active energy rays refer to ionizing radiation such as ultraviolet rays, electron beams, ⁇ rays, ⁇ rays, and ⁇ rays.
- a photopolymerization initiator (F) is added to the fluorine-containing curable resin or active energy ray curable composition to improve curability. It is preferable. Further, if necessary, a photosensitizer can be further added to improve curability.
- ionizing radiation such as electron beam, ⁇ -ray, ⁇ -ray, and ⁇ -ray
- F) or a photosensitizer need not be added.
- Examples of the photopolymerization initiator (F) include intramolecular cleavage type photopolymerization initiators and hydrogen abstraction type photopolymerization initiators.
- Examples of the intramolecular cleavage type photopolymerization initiator include diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethyl ketal, 1- (4-isopropylphenyl) -2-hydroxy.
- Acetophenone compounds such as propan-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone; benzoins such as benzoin, benzoin methyl ether, benzoin isopropyl ether; 2, 4, 6 -Trimethylbenzoin diphenylphosphine Kishido, bis (2,4,6-trimethylbenzoyl) acyl phosphine oxide-based compounds such as triphenylphosphine oxide; benzyl, and methyl phenylglyoxylate ester.
- examples of the hydrogen abstraction type photopolymerization initiator include benzophenone, methyl 4-phenylbenzophenone o-benzoylbenzoate, 4,4′-dichlorobenzophenone, hydroxybenzophenone, 4-benzoyl-4′-methyl-diphenyl sulfide.
- Benzophenone compounds such as acrylated benzophenone, 3,3 ′, 4,4′-tetra (t-butylperoxycarbonyl) benzophenone, 3,3′-dimethyl-4-methoxybenzophenone; 2-isopropylthioxanthone, 2,4 -Thioxanthone compounds such as dimethylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone; Aminobenzophenone compounds such as Michler-ketone, 4,4'-diethylaminobenzophenone; -2-chloro acridone, 2-ethyl anthraquinone, 9,10-phenanthrenequinone, camphorquinone, and the like.
- the compatibility with the active energy ray curable resin (D) and the active energy ray curable monomer (E) in the active energy ray curable composition is excellent. Therefore, 1-hydroxycyclohexyl phenyl ketone and benzophenone are preferable, and 1-hydroxycyclohexyl phenyl ketone is particularly preferable.
- These photopolymerization initiators (F) can be used alone or in combination of two or more.
- the photosensitizer examples include amines such as aliphatic amines and aromatic amines, ureas such as o-tolylthiourea, sodium diethyldithiophosphate, s-benzylisothiouronium-p-toluenesulfonate, and the like. And sulfur compounds.
- photopolymerization initiators and photosensitizers are preferably used in an amount of 0.01 to 20 parts by weight, preferably 0.1 to 15 parts by weight, per 100 parts by weight of the non-volatile component in the active energy ray-curable composition. Part is more preferable, and 0.3 to 7 parts by mass is even more preferable.
- the active energy ray-curable composition of the present invention is not limited to the effects of the present invention, depending on the purpose of use, characteristics, etc.
- Various compounding materials for the purpose of adjusting coating properties and coating film properties such as various organic solvents, acrylic resins, phenol resins, polyester resins, polystyrene resins, urethane resins, urea resins, melamine resins, alkyd resins, epoxy resins,
- Various resins such as polyamide resin, polycarbonate resin, petroleum resin, fluororesin, various organic or inorganic particles such as PTFE (polytetrafluoroethylene), polyethylene, polypropylene, carbon, titanium oxide, alumina, copper, silica fine particles, polymerization start Agent, polymerization inhibitor, antistatic agent, antifoaming agent, viscosity modifier, light stabilizer, weather stabilizer, Stabilizers, antioxidants, rust inhibitors, slip agents, waxes, gloss modifiers, mold release agents, compatibilizers, conduct
- the organic solvent is useful for appropriately adjusting the solution viscosity of the active energy ray-curable composition of the present invention.
- the film thickness can be adjusted. It becomes easy.
- the organic solvent that can be used here include aromatic hydrocarbons such as toluene and xylene; alcohols such as methanol, ethanol, isopropanol and t-butanol; esters such as ethyl acetate and propylene glycol monomethyl ether acetate; methyl ethyl ketone, Examples thereof include ketones such as methyl isobutyl ketone and cyclohexanone. These solvents can be used alone or in combination of two or more.
- the amount of the organic solvent to be used varies depending on the intended use and the intended film thickness and viscosity, but is preferably in the range of 0.5 to 4 times the mass of the total mass of the curing component.
- the active energy ray for curing the active energy ray-curable composition of the present invention is an ionizing radiation such as an ultraviolet ray, an electron beam, an ⁇ ray, a ⁇ ray, and a ⁇ ray.
- an ionizing radiation such as an ultraviolet ray, an electron beam, an ⁇ ray, a ⁇ ray, and a ⁇ ray.
- a curing device for example, a germicidal lamp, an ultraviolet fluorescent lamp, a carbon arc, a xenon lamp, a high-pressure mercury lamp for copying, a medium or high-pressure mercury lamp, an ultra-high pressure mercury lamp, an electrodeless lamp, a metal halide lamp, natural light, etc.
- the electron beam include ultraviolet rays, a scanning type, and a curtain type electron beam accelerator.
- ultraviolet rays are particularly preferable, and ultraviolet rays are preferably irradiated in an inert gas atmosphere such as nitrogen gas in order to avoid curing inhibition due to oxygen or the like. Further, if necessary, heat may be used as an energy source and heat treatment may be performed after curing with ultraviolet rays.
- the application method of the active energy ray-curable composition of the present invention varies depending on the application.
- the cured coating film of the fluorine-containing curable resin of the present invention or the active energy ray-curable composition of the present invention has excellent antifouling properties (ink repellency, fingerprint resistance, etc.), scratch resistance, etc. By applying and curing on the surface, antifouling property, scratch resistance and the like can be imparted to the surface of the article.
- the cured coating film of the fluorine-containing curable resin of the present invention or the active energy ray-curable composition of the present invention can maintain the antifouling property of the cured coating film surface even after wiping off the dirt adhering to the cured coating film surface. .
- the fluorine-containing curable resin of the present invention can be imparted with leveling properties to the coating material by adding it as a fluorine-containing surface modifier to the coating material, the active energy ray-curable composition of the present invention.
- the thing has a high leveling property.
- Examples of articles that can be imparted with antifouling properties (ink repellency, fingerprint resistance, etc.) using the fluorine-containing curable resin or active energy ray-curable composition of the present invention include polarization of liquid crystal displays (LCD) such as TAC films.
- LCD liquid crystal displays
- Film for plates Various display screens such as plasma display (PDP) and organic EL display; Touch panel; Case or screen of electronic terminal such as mobile phone; Transparent protection for color filter for liquid crystal display (hereinafter referred to as “CF”) Film: Organic insulating film for liquid crystal TFT array; Ink-jet ink for forming electronic circuit; Optical recording medium such as CD, DVD, Blu-ray disc; Transfer film for insert mold (IMD, IMF); Rubber for OA equipment such as copier and printer Roller; Glass surface of the reading part of OA equipment such as copiers and scanners; Optical lenses such as LA, video camera, glasses, etc .; windshields of watches such as watches, glass surfaces; windows of various vehicles such as automobiles and railway vehicles; cover glasses or films for solar cells; various building materials such as decorative panels; Glass; woodworking materials such as furniture, artificial and synthetic leather, various plastic molded products such as housings for home appliances, FRP bathtubs, and the like.
- CF Transparent protection for color filter for liquid crystal display
- antifouling properties can be imparted to the article surfaces.
- TAC Hard coating materials for polarizing plates of LCD such as films, anti-glare (AG: anti-glare) coating materials or anti-reflection (LR) coating materials; hard coating materials for various display screens such as plasma displays (PDP) and organic EL displays Hard coat material for touch panel; color resist, printing ink, inkjet ink or paint for forming each pixel of RGB used in CF; black resist, printing ink, inkjet ink or paint for black matrix of CF; plasma Resin composition for pixel partition walls of displays (PDP), organic EL displays, etc.
- PDP plasma displays
- Coating materials for electronic terminals such as mobile phones or hard coating materials; hard coating materials for mobile phone screens; transparent protective film coatings that protect the CF surface; coatings for organic insulating films of liquid crystal TFT arrays; Ink-jet inks; Hard coating materials for optical recording media such as CDs, DVDs, Blu-ray discs; Hard coating materials for transfer films for insert molds (IMD, IMF); Coating materials for rubber rollers for OA equipment such as copying machines and printers; Glass coating material for reading parts of OA equipment such as copy machines and scanners; Optical lens coating materials for cameras, video cameras, glasses, etc .; Windshields for watches such as watches, glass coating materials; Various types of automobiles, railway vehicles, etc.
- a prism sheet that is a backlight member of an LCD or Examples thereof include a diffusion sheet. Further, by adding the fluorine-containing curable resin of the present invention to the prism sheet or the diffusion sheet coating material, the leveling property of the coating material is improved and the coating film of the coating material is scratch resistant (scratch resistance). And antifouling property can be provided.
- optical fiber cladding materials As other applications in which the fluorine-containing curable resin or the active energy ray-curable composition of the present invention can be used, optical fiber cladding materials, waveguides, liquid crystal panel sealing materials, various optical sealing materials, optical Adhesives and the like.
- the active energy ray-curable composition of the present invention when used as an antiglare coating material among coating materials for protective films for polarizing plates for LCDs, among the above-described compositions, silica fine particles, acrylic resin fine particles, polystyrene resin Excellent anti-glare properties by blending inorganic or organic fine particles such as fine particles at a ratio of 0.1 to 0.5 times the total mass of the curing component in the active energy ray-curable composition of the present invention. Since it becomes a thing, it is preferable.
- the fluorine-containing curable resin or the active energy ray-curable composition of the present invention is used for an antiglare coating material for a protective film of a polarizing plate for LCD, a mold having an uneven surface shape is formed before the coating material is cured. After the contact, the active energy ray is irradiated from the side opposite to the mold and cured, and the surface of the coating layer can be embossed to apply an antiglare property.
- Synthesis Example 1 [Synthesis of monomer (A) having a poly (perfluoroalkylene ether) chain and a polymerizable unsaturated group at both terminals thereof]
- a glass flask equipped with a stirrer, thermometer, condenser, and dropping device has a poly (perfluoroalkylene ether) chain represented by the following formula (a2-1-1), and has hydroxyl groups at both ends.
- X represents a perfluoromethylene group and a perfluoroethylene group, and the average number of perfluoromethylene groups is 17 and the average number of perfluoroethylene groups is 19 per molecule.
- the fluoromethylene unit and the oxyperfluoroethylene unit are random bonds.
- X represents a perfluoromethylene group and a perfluoroethylene group, and the average number of perfluoromethylene groups is 17 and the average number of perfluoroethylene groups is 19 per molecule.
- the fluoromethylene unit and the oxyperfluoroethylene unit are random bonds.
- Synthesis example 2 (same as above) A glass flask equipped with a stirrer, thermometer, condenser, and dropping device has a poly (perfluoroalkylene ether) chain represented by the following formula (a2-1-2), and has hydroxyl groups at both ends. 20 parts by mass of a compound, 20 parts by mass of diisopropyl ether as a solvent, 0.02 parts by mass of p-methoxyphenol as a polymerization inhibitor and 3.1 parts by mass of triethylamine as a neutralizing agent, and stirring under an air stream were started. While keeping the inside of the flask at 10 ° C., 2.7 parts by mass of methacrylic acid chloride was added dropwise over 1 hour.
- a poly (perfluoroalkylene ether) chain represented by the following formula (a2-1-2), and has hydroxyl groups at both ends. 20 parts by mass of a compound, 20 parts by mass of diisopropyl ether as a solvent, 0.02 parts by mass of
- the mixture was stirred at 10 ° C. for 1 hour, heated, stirred at 30 ° C. for 1 hour, further heated to 50 ° C. and stirred for 10 hours, and then disappearance of methacrylic acid chloride by gas chromatography measurement. The reaction was terminated. Next, after adding 40 parts by mass of diisopropyl ether as a solvent, 80 parts by mass of ion-exchanged water was mixed and stirred, and then left to stand to separate and remove the aqueous layer, and washing was repeated 3 times.
- X represents a perfluoromethylene group and a perfluoroethylene group, and the average number of perfluoromethylene groups is 7 and the average number of perfluoroethylene groups is 8 per molecule.
- the fluoromethylene unit and the oxyperfluoroethylene unit are random bonds.
- X represents a perfluoromethylene group and a perfluoroethylene group, and the average number of perfluoromethylene groups is 7 and the average number of perfluoroethylene groups is 8 per molecule.
- the fluoromethylene unit and the oxyperfluoroethylene unit are random bonds.
- Example 1 (Preparation of fluorine-containing curable resin of the present invention) A glass flask equipped with a stirrer, a thermometer, a condenser, and a dropping device was charged with 425 parts by mass of methyl isobutyl ketone and 1,305 parts by mass of 1,3-bis (trifluoromethyl) benzene as a solvent. The temperature was raised to 95 ° C. with stirring.
- Liquid 3 3 types of dripping solution (Liquid 3) dissolved in each were set in separate dripping devices respectively, while keeping the inside of the flask at 95 ° C. Initiation of dropping, the liquid 1 and liquid 2 is 2 hours, the liquid 3 was added dropwise over 2 hours 20 minutes. After completion of dropping, the mixture was stirred at 95 ° C. for 5 hours.
- Comparative Example 1 [Preparation of fluorinated curable resin having poly (perfluoroalkylene ether) chain]
- a glass flask equipped with a stirrer, thermometer, condenser, and dropping device was charged with 146.1 parts by mass of 1,3-bis (trifluoromethyl) benzene as a solvent, and stirred at 105 ° C. while stirring under a nitrogen stream. The temperature rose.
- HEMA 2-hydroxyethyl methacrylate
- Comparative Example 2 (same as above) In another glass flask equipped with a stirrer, a thermometer, a condenser, and a dropping device, 63 parts by mass of methyl isobutyl ketone was charged as a solvent, and the temperature was raised to 105 ° C. while stirring in a nitrogen stream.
- Comparative Example 3 [Preparation of fluorinated curable resin having poly (perfluoroalkylene ether) chain and maleimide group]
- a glass flask equipped with a stirrer, a thermometer, a condenser, and a dropping device was charged with 3,275 parts by mass of methyl isobutyl ketone as a solvent and heated to 105 ° C. while stirring under a nitrogen stream.
- 191 parts by mass (Liquid 1) of monomer (A-2-2) obtained in Synthesis Example 2 and 762 parts by mass of 3,4,5,6-tetrahydrophthalimidoethyl acrylate were added to methyl isobutyl ketone 1,288.
- Liquid 2 Three types of solutions (Liquid 2) dissolved in parts by mass, and a solution (Liquid 3) in which 143 parts by mass of t-butylperoxy-2-ethylhexanoate as a radical polymerization initiator were dissolved in 835 parts by mass of methyl isobutyl ketone
- the dripping liquids were set in separate dripping apparatuses, respectively, and dropped simultaneously over 2 hours while maintaining the inside of the flask at 105 ° C. After completion of dropping, the mixture was stirred at 105 ° C. for 10 hours.
- the reaction liquid obtained above was cooled to room temperature, and then insoluble in the solution was filtered off to obtain a solution containing 16% by mass of a comparative fluorine-containing curable resin (3 ′).
- the molecular weight of the comparative fluorine-containing curable resin (3 ′) was measured by GPC (polystyrene equivalent molecular weight). As a result, the number average molecular weight was 2,000 and the weight average molecular weight was 6,000.
- base resin composition of active energy ray curable composition 50 parts by mass of pentafunctional non-yellowing urethane acrylate, 50 parts by mass of dipentaerythritol hexaacrylate, 25 parts by mass of butyl acetate, 1-hydroxycyclohexylphenyl as a photopolymerization initiator 5 parts by weight of a ketone (“Irgacure 184” manufactured by BASF Japan Ltd.), 54 parts by weight of toluene as a solvent, 28 parts by weight of 2-propanol, 28 parts by weight of ethyl acetate, 28 parts by weight of propylene glycol monomethyl ether were mixed and dissolved.
- a base resin composition of an active energy ray curable composition was obtained.
- Examples 3 and 4 and Comparative Examples 5 to 9 In 268 parts by mass of the base resin composition obtained above, the fluorine-containing curable resin for comparison and the solutions of the fluorine-containing curable resins obtained in Examples 1 and 2 and Comparative Examples 1 to 4 were used. An amount of 1 part by weight of the above solution was added and mixed uniformly to obtain active energy ray-curable compositions 1 and 2 and comparative active energy ray-curable compositions 1 ′ to 4 ′. . Subsequently, these active energy ray-curable compositions were applied to bar coater No. 13 is applied to a polyethylene terephthalate (PET) film having a thickness of 188 ⁇ m, then put into a dryer at 60 ° C.
- PET polyethylene terephthalate
- UV ultraviolet rays
- a film (coated film) on which a cured coating film was laminated was obtained.
- the ultraviolet irradiation conditions were an air atmosphere (oxygen concentration 21% by volume), a high-pressure mercury lamp, and an ultraviolet irradiation amount of 3.5 kJ / m 2 .
- the antifouling property of the coated surface of the coated film obtained above was evaluated by the antifouling property, the ease of wiping off the dirt, and the antifouling property after wiping off the dirt.
- the evaluation method is shown below.
- Example 3 From the evaluation results shown in Table 1, the active energy ray-curable composition of Example 3 to which the fluorine-containing curable resin (1) obtained in Example 1, which is the fluorine-containing curable resin of the present invention, was added.
- the cured coating has very good anti-smudge properties, easy wiping of dirt, and anti-smudge properties after wiping off the dirt. It was found that a cured coating film having soiling properties can be obtained. This is because the mercapto group present in the fluorine-containing curable resin of the present invention reacts with an acryloyl group such as urethane acrylate which is a matrix component in the active energy ray-curable composition, thereby the fluorine-containing curable resin of the present invention. This is because the resin is firmly fixed on the surface of the coating film.
- the characteristic of the reaction between this mercapto group and acryloyl group is that it is less susceptible to polymerization inhibition by oxygen even when UV curing is performed in an air atmosphere. This inhibition of polymerization by oxygen is due to the reaction between the terminal radical of the polymer in the growth process and oxygen in the air. Since the peroxide radical generated at this time does not react with the acryloyl group, the polymerization stops as a result. However, when a mercapto group is present in the polymerization system, the generated peroxide radicals extract the hydrogen of the mercapto group and generate a thiyl radical. This thiyl radical can react with an acryloyl group to initiate polymerization, and the polymerization reaction proceeds favorably.
- the fluorine-containing curable resin of the present invention is not subjected to polymerization inhibition by oxygen. To be firmly fixed. Furthermore, the maleimide group of the fluorine-containing curable resin of the present invention causes a photodimerization reaction by ultraviolet irradiation, and has a stronger antifouling property by crosslinking the polymer chains of the fluorine-containing curable resin of the present invention. It becomes a cured coating film.
- the cured coating film of the active energy ray-curable composition of Comparative Example 5 to which the comparative fluorine-containing curable resin (1 ′) obtained in Comparative Example 1 was added had good soil wiping ease.
- the antifouling property and the antifouling property after wiping off the dirt were insufficient and the antifouling property was slightly inferior.
- the polymerizable unsaturated group of the fluorine-containing curable resin (1 ′) is an acryloyl group, and the polymerization was subjected to oxygen inhibition, so that the polymerization did not proceed sufficiently and a strong cured coating film was not obtained. It is because.
- the cured coating films of the comparative active energy ray curable compositions of Comparative Examples 6 to 7 to which the comparative fluorine-containing curable resins (2 ′) to (3 ′) obtained in Comparative Examples 2 to 3 were added It was found that the antifouling property was poor and the antifouling property was inadequate, and the antifouling property after soiling was insufficient.
- the fluorine-containing curable resin for comparison (2 ′) as in the fluorine-containing curable resin for comparison (1 ′), the polymerizable unsaturated group is an acryloyl group. This is because, due to inhibition, sufficient polymerization did not proceed and a strong cured coating film was not obtained.
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Abstract
Description
方法1:ポリ(パーフルオロアルキレンエーテル)鎖の両末端に水酸基を1つずつ有する化合物に対して(メタ)アクリル酸クロライドを脱塩酸反応させて得る方法。
方法2:ポリ(パーフルオロアルキレンエーテル)鎖の両末端に水酸基を1つずつ有する化合物に対して(メタ)アクリル酸を脱水反応させて得る方法。
方法3:ポリ(パーフルオロアルキレンエーテル)鎖の両末端に水酸基を1つずつ有する化合物に対して2-(メタ)アクリロイルオキシエチルイソシアネートをウレタン化反応させて得る方法。
方法4:ポリ(パーフルオロアルキレンエーテル)鎖の両末端に水酸基を1つずつ有する化合物に対して無水イタコン酸をエステル化反応させて得る方法。
方法5:ポリ(パーフルオロアルキレンエーテル)鎖の両末端に水酸基を1つずつ有する化合物に対してクロロメチルスチレンを脱塩酸反応させて得る方法。
方法6:ポリ(パーフルオロアルキレンエーテル)鎖の両末端に水酸基を1つずつ有する化合物に対して(メタ)アクリル酸無水物をエステル化反応させる方法。
方法7:ポリ(パーフルオロアルキレンエーテル)鎖の両末端にカルボキシル基を1つずつ有する化合物に対して4-ヒドロキシブチル(メタ)アクリレートグリシジルエーテルをエステル化反応させて得る方法。
方法8:ポリ(パーフルオロアルキレンエーテル)鎖の両末端にカルボキシル基を1つずつ有する化合物に対してグリシジル(メタ)アクリレートをエステル化反応させて得る方法。
方法9:ポリ(パーフルオロアルキレンエーテル)鎖の両末端にイソシアネート基を1つずつ有する化合物に対して2-ヒドロキシエチル(メタ)アクリレートを反応させて得る方法。
方法10:ポリ(パーフルオロアルキレンエーテル)鎖の両末端にイソシアネート基を1つずつ有する化合物に対して2-ヒドロキシエチル(メタ)アクリルアミドを反応させる方法。
方法11:ポリ(パーフルオロアルキレンエーテル)鎖の両末端にエポキシ基を1つずつ有する化合物に対して(メタ)アクリル酸をエステル化反応させる方法。
測定装置:東ソー株式会社製「HLC-8220 GPC」、
カラム:東ソー株式会社製ガードカラム「HHR-H」(6.0mmI.D.×4cm)
+東ソー株式会社製「TSK-GEL GMHHR-N」(7.8mmI.D.×30cm)
+東ソー株式会社製「TSK-GEL GMHHR-N」(7.8mmI.D.×30cm)
+東ソー株式会社製「TSK-GEL GMHHR-N」(7.8mmI.D.×30cm)
+東ソー株式会社製「TSK-GEL GMHHR-N」(7.8mmI.D.×30cm)
検出器:ELSD(オルテック製「ELSD2000」)
データ処理:東ソー株式会社製「GPC-8020モデルIIデータ解析バージョン4.30」
測定条件:カラム温度 40℃
展開溶媒 テトラヒドロフラン(THF)
流速 1.0ml/分
試料:樹脂固形分換算で1.0質量%のテトラヒドロフラン溶液をマイクロフィルターでろ過したもの(5μl)。
標準試料:前記「GPC-8020モデルIIデータ解析バージョン4.30」の測定マニュアルに準拠して、分子量が既知の下記の単分散ポリスチレンを用いた。
東ソー株式会社製「A-500」
東ソー株式会社製「A-1000」
東ソー株式会社製「A-2500」
東ソー株式会社製「A-5000」
東ソー株式会社製「F-1」
東ソー株式会社製「F-2」
東ソー株式会社製「F-4」
東ソー株式会社製「F-10」
東ソー株式会社製「F-20」
東ソー株式会社製「F-40」
東ソー株式会社製「F-80」
東ソー株式会社製「F-128」
東ソー株式会社製「F-288」
東ソー株式会社製「F-550」
装置:フーリエ変換赤外分光装置(サーモエレクトロン株式会社製「NICOLET380」)
方法:KBr法
装置:日本電子株式会社製「AL-400」
溶媒:クロロホルム-d
測定装置:東ソー株式会社製「HLC-8220 GPC」、
カラム:東ソー株式会社製ガードカラム「HHR-H」(6.0mmI.D.×4cm)
+東ソー株式会社製「TSK-GEL GMHHR-N」(7.8mmI.D.×30cm)
+東ソー株式会社製「TSK-GEL GMHHR-N」(7.8mmI.D.×30cm)
+東ソー株式会社製「TSK-GEL GMHHR-N」(7.8mmI.D.×30cm)
+東ソー株式会社製「TSK-GEL GMHHR-N」(7.8mmI.D.×30cm)
検出器:ELSD(オルテック製「ELSD2000」)
データ処理:東ソー株式会社製「GPC-8020モデルIIデータ解析バージョン4.30」
測定条件:カラム温度 40℃
展開溶媒 テトラヒドロフラン(THF)
流速 1.0ml/分
試料:樹脂固形分換算で1.0質量%のテトラヒドロフラン溶液をマイクロフィルターでろ過したもの(5μl)。
標準試料:前記「GPC-8020モデルIIデータ解析バージョン4.30」の測定マニュアルに準拠して、分子量が既知の下記の単分散ポリスチレンを用いた。
東ソー株式会社製「A-500」
東ソー株式会社製「A-1000」
東ソー株式会社製「A-2500」
東ソー株式会社製「A-5000」
東ソー株式会社製「F-1」
東ソー株式会社製「F-2」
東ソー株式会社製「F-4」
東ソー株式会社製「F-10」
東ソー株式会社製「F-20」
東ソー株式会社製「F-40」
東ソー株式会社製「F-80」
東ソー株式会社製「F-128」
東ソー株式会社製「F-288」
東ソー株式会社製「F-550」
撹拌装置、温度計、冷却管、滴下装置を備えたガラスフラスコに、下記式(a2-1-1)で表されるポリ(パーフルオロアルキレンエーテル)鎖を有し、その両末端に水酸基を有する化合物20質量部、溶媒として1,3-ビス(トリフルオロメチル)ベンゼン10質量部、重合禁止剤としてp-メトキシフェノール0.02質量部及び中和剤としてトリエチルアミン1.5質量部を仕込み、空気気流下にて攪拌を開始し、フラスコ内を10℃に保ちながらメタクリル酸クロライド1.3質量部を1時間かけて滴下した。滴下終了後、10℃で1時間攪拌し、昇温して30℃で1時間攪拌して、さらに50℃に昇温して10時間撹拌した後、ガスクロマトグラフィー測定にてメタクリル酸クロライドの消失を確認し反応を終了した。次いで、溶媒として1,3-ビス(トリフルオロメチル)ベンゼン70質量部を追加した後、イオン交換水80質量部を混合して攪拌してから静置し水層を分離させて取り除く方法による洗浄を3回繰り返した。次いで、重合禁止剤としてp-メトキシフェノール0.02質量部を添加し、脱水剤として硫酸マグネシウム8質量部を添加して1日間静置することで完全に脱水した後、脱水剤を濾別した。
撹拌装置、温度計、冷却管、滴下装置を備えたガラスフラスコに、下記式(a2-1-2)で表されるポリ(パーフルオロアルキレンエーテル)鎖を有し、その両末端に水酸基を有する化合物20質量部、溶媒としてジイソプロピルエーテル20質量部、重合禁止剤としてp-メトキシフェノール0.02質量部及び中和剤としてトリエチルアミン3.1質量部を仕込み、空気気流下にて攪拌を開始し、フラスコ内を10℃に保ちながらメタクリル酸クロライド2.7質量部を1時間かけて滴下した。滴下終了後、10℃で1時間攪拌し、昇温して30℃で1時間攪拌して、さらに50℃に昇温して10時間撹拌した後、ガスクロマトグラフィー測定にてメタクリル酸クロライドの消失を確認し反応を終了した。次いで、溶媒としてジイソプロピルエーテル40質量部を追加した後、イオン交換水80質量部を混合して攪拌してから静置し水層を分離させて取り除く方法による洗浄を3回繰り返した。次いで、重合禁止剤としてp-メトキシフェノール0.02質量部を添加し、脱水剤として硫酸マグネシウム8質量部を添加して1日間静置することで完全に脱水した後、脱水剤を濾別した。
撹拌装置、温度計、冷却管、滴下装置を備えたガラスフラスコに、溶媒としてメチルイソブチルケトン425質量部と1,3-ビス(トリフルオロメチル)ベンゼン1,305質量部を仕込み、窒素気流下にて攪拌しながら95℃に昇温した。次いで、上記合成例1で得られた単量体(A-2-1)209質量部を1,3-ビス(トリフルオロメチル)ベンゼン145質量部に溶解した溶液(液1)と、3,4,5,6-テトラヒドロフタルイミドエチルアクリレート836質量部をメチルイソブチルケトン643質量部及び1,3-ビス(トリフルオロメチル)ベンゼン200質量部の混合溶媒に溶解した溶液(液2)と、ラジカル重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート11質量部及び下記式(B-1)で表されるペンタエリスリトールテトラキス(3-メルカプトブチレート)53質量部をメチルイソブチルケトン420質量部に溶解した溶液(液3)の3種類の滴下液をそれぞれ別々の滴下装置にセットし、フラスコ内を95℃に保ちながら同時に滴下を開始し、液1と液2は2時間、液3は2時間20分かけて滴下した。滴下終了後、95℃で5時間攪拌した。
撹拌装置、温度計、冷却管、滴下装置を備えたガラスフラスコに、溶媒として1,3-ビス(トリフルオロメチル)ベンゼン146.1質量部を仕込み、窒素気流下にて攪拌しながら105℃に昇温した。次いで、上記合成例1で得られた単量体(A-2-1)83.5質量部(液1)と、2-ヒドロキシエチルメタクリレート(以下、「HEMA」と略記する。)160質量部(液2)と、ラジカル重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート36.5質量部を1,3-ビス(トリフルオロメチル)ベンゼン306.2質量部に溶解した溶液(液3)の3種類の滴下液をそれぞれ別々の滴下装置にセットし、フラスコ内を105℃に保ちながら同時に2時間かけて滴下した。滴下終了後、105℃で5時間攪拌して、単量体(A-2-1)とHEMAとの共重合体を得た。
撹拌装置、温度計、冷却管、滴下装置を備えた別のガラスフラスコに、溶媒としてメチルイソブチルケトン63質量部を仕込み、窒素気流下にて攪拌しながら105℃に昇温した。次いで、上記合成例2で得られた単量体(A-2-2)21.5質量部(液1)、HEMA41.3質量部(液2)、ラジカル重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート9.4質量部をメチルイソブチルケトン126質量部に溶解した溶液135.4質量部(液3)の3種類の滴下液をそれぞれ別々の滴下装置にセットし、フラスコ内を105℃に保ちながら同時に2時間かけて滴下した。滴下終了後、105℃で10時間攪拌した後、減圧下で溶媒を留去することによって、単量体(A-2-2)とHEMAとの共重合体を得た。
撹拌装置、温度計、冷却管、滴下装置を備えたガラスフラスコに、溶媒としてメチルイソブチルケトン3,275質量部を仕込み、窒素気流下にて攪拌しながら105℃に昇温した。次いで、上記合成例2で得られた単量体(A-2-2)191質量部(液1)、3,4,5,6-テトラヒドロフタルイミドエチルアクリレート762質量部をメチルイソブチルケトン1,288質量部に溶解した溶液(液2)、ラジカル重合開始剤であるt-ブチルペルオキシ-2-エチルヘキサノエート143質量部をメチルイソブチルケトン835質量部に溶解した溶液(液3)の3種類の滴下液をそれぞれ別々の滴下装置にセットし、フラスコ内を105℃に保ちながら同時に2時間かけて滴下した。滴下終了後、105℃で10時間攪拌した。
5官能無黄変型ウレタンアクリレート50質量部、ジペンタエリスリトールヘキサアクリレート50質量部、酢酸ブチル25質量部、光重合開始剤として1-ヒドロキシシクロヘキシルフェニルケトン(BASFジャパン株式会社製「イルガキュア184」)5質量部、溶剤としてトルエン54質量部、2-プロパノール28質量部、酢酸エチル28質量部、プロピレングリコールモノメチルエーテル28質量部を混合し溶解させて、活性エネルギー線硬化性組成物のベース樹脂組成物を得た。
上記で得られたベース樹脂組成物268質量部に、実施例1、実施例2で得られた含フッ素硬化性樹脂の溶液及び比較例1~4で得られた比較対照用含フッ素硬化性樹脂の溶液を樹脂分として1質量部となる量を加えて均一に混合して、活性エネルギー線硬化性組成
物1、2及び比較対照用活性エネルギー線硬化性組成物1´~4´を得た。次いで、これらの活性エネルギー線硬化性組成物をバーコーターNo.13を用いて、厚さ188μmのポリエチレンテレフタレート(PET)フィルムに塗布した後、60℃の乾燥機に5分間入れて溶剤を揮発させ、紫外線硬化装置にて紫外線(UV)を照射して硬化させ、硬化塗膜が積層したフィルム(塗工フィルム)を得た。なお、紫外線の照射条件は、空気雰囲気下(酸素濃度21容量%)、高圧水銀灯使用、紫外線照射量3.5kJ/m2とした。
塗工フィルムの塗工表面に、フェルトペン(寺西化学工業株式会社製「マジックインキ大型黒色」)で線を描き、その黒色インクの付着状態を目視で観察することで汚れ付着防止性の評価を行った。なお、評価基準は下記の通りである。
A:防汚性が最も良好で、インクが玉状にはじくもの。
B:インクが玉状にはじかず、線状のはじきが生じるもの(線幅がフェルトペンのペン先の幅の50%未満)。
C:インクの線状のはじきが生じ、線幅がフェルトペンのペン先の幅の50%以上100%未満であったもの。
D:インクがまったくはじかずに表面にきれいに描けてしまうもの。
上記の汚れ付着防止性の試験後、付着したインクを荷重500gにてティッシュペーパーですべて拭き取るのに要した拭き取り回数を測定し、その結果から下記の基準にしたがって汚れ拭き取り容易性を評価した。
A:1回の拭き取りで完全にインクを除去できたもの。
B:2~10回の拭き取りで完全にインクを除去できたもの。
C:10回の拭き取り操作で完全にはインクを除去できなかったもの。
上記の汚れ拭き取り容易性の試験後、再び、フェルトペン(寺西化学工業株式会社製「マジックインキ大型黒色」)で線を描き、その黒色インクの付着状態を目視で観察することで汚れ付着防止性の評価を行った。なお、評価基準は下記の通りである。
A:防汚性が最も良好で、インクが玉状にはじくもの。
B:インクが玉状にはじかず、線状のはじきが生じるもの(線幅がフェルトペンのペン先の幅の50%未満)。
C:インクの線状のはじきが生じ、線幅がフェルトペンのペン先の幅の50%以上100%未満であったもの。
D:インクがまったくはじかずに表面にきれいに描けてしまうもの。
Claims (10)
- 重合性不飽和基を有する単量体の重合体またはウレタン重合体の重合体構造中にポリ(パーフルオロアルキレンエーテル)鎖、マレイミド基及びメルカプト基を有することを特徴とする含フッ素硬化性樹脂。
- 前記重合体が重合性不飽和基を有する単量体の重合体である請求項1記載の含フッ素硬化性樹脂。
- ポリ(パーフルオロアルキレンエーテル)鎖とその両末端に重合性不飽和基を有する単量体(A)と、マレイミド基及びマレイミド基以外の重合性不飽和基を有する単量体(B)とを必須の単量体成分として、多官能チオール(C)の存在下で共重合させて得られる請求項1記載の含フッ素硬化性樹脂。
- 前記単量体(A)が有する重合性不飽和基が(メタ)アクリロイル基である請求項3記載の含フッ素硬化性樹脂。
- 前記多官能チオール(C)が、ペンタエリスリトールテトラキス(3-メルカプトブチレート)、ペンタエリスリトールテトラキスチオプロピオネート、トリス(3-メルカプトブチルオキシエチル)イソシアヌレート及びジペンタエリスリトールヘキサキスチオプロピオネートからなる群から選ばれる1種以上の化合物である請求項3記載の含フッ素硬化性樹脂。
- 前記多官能チオール(C)の使用量が、重合性不飽和基を有する単量体の合計100質量部に対して0.1~50質量部の範囲である請求項3記載の含フッ素硬化性樹脂。
- 請求項1~7のいずれか1項記載の含フッ素硬化性樹脂を、基材に塗布し、活性エネルギー線を照射して硬化させてなることを特徴とする硬化物。
- 請求項1~7のいずれか1項記載の含フッ素硬化性樹脂、及び、活性エネルギー線硬化性樹脂(D)又は活性エネルギー線硬化性単量体(E)を含有することを特徴とする活性エネルギー線硬化性組成物。
- 請求項9記載の活性エネルギー線硬化性組成物を、基材に塗布し、活性エネルギー線を照射して硬化させてなることを特徴とする硬化物。
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JPWO2016002335A1 (ja) * | 2014-07-02 | 2017-04-27 | 横浜ゴム株式会社 | 反応性ホットメルト接着剤組成物 |
WO2016104377A1 (ja) * | 2014-12-25 | 2016-06-30 | 旭硝子株式会社 | 硬化性樹脂組成物 |
WO2019129691A1 (en) * | 2017-12-26 | 2019-07-04 | Akzo Nobel Coatings International B.V. | A fluorinated ether polymer, the preparation method therefore and use thereof |
KR20210151878A (ko) * | 2019-06-06 | 2021-12-14 | 디아이씨 가부시끼가이샤 | 함불소 수지, 활성 에너지선 경화형 조성물, 열경화형 조성물, 및 상기 조성물의 경화물 |
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