WO2012014829A1 - 単層膜およびこれからなる親水性材料 - Google Patents
単層膜およびこれからなる親水性材料 Download PDFInfo
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- WO2012014829A1 WO2012014829A1 PCT/JP2011/066804 JP2011066804W WO2012014829A1 WO 2012014829 A1 WO2012014829 A1 WO 2012014829A1 JP 2011066804 W JP2011066804 W JP 2011066804W WO 2012014829 A1 WO2012014829 A1 WO 2012014829A1
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- RZVHIXYEVGDQDX-UHFFFAOYSA-N O=C(c1c2cccc1)c(cccc1)c1C2=O Chemical compound O=C(c1c2cccc1)c(cccc1)c1C2=O RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
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- C08F222/10—Esters
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- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
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- C08J7/056—Forming hydrophilic coatings
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- 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
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- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
Definitions
- the present invention relates to a hydrophilic cured product excellent in antifogging property, antifouling property and antistatic property, for example, a single layer film. More specifically, the present invention relates to a hydrophilic cured product in which the concentration of anionic hydrophilic groups is inclined in the film thickness direction obtained by polymerizing a mixture containing a specific compound, for example, a single layer film and a laminate including the single layer film.
- an antifogging paint in which a reactive surfactant is added to an acrylic oligomer has been proposed, and the cured film obtained from this antifogging paint has improved hydrophilicity and water absorption.
- Non-Patent Document 1 For example, as a method of solving the problem of dirt, self-cleaning that improves the hydrophilicity of the surface and efficiently removes dirt (hydrophobic substances etc.) adhering to the outer wall, etc. by floating or spraying water.
- An antifouling material having a property has attracted attention (see, for example, Non-Patent Document 2 and Non-Patent Document 3).
- hydrophilicity for example, many resins having a large number of hydroxyl groups in the molecule such as polyvinyl alcohol are known. Since these hydrophilic resins exhibit different characteristics depending on their chemical structures, products suitable for these characteristics have been developed.
- hydrophilic resins for example, 3-sulfopropyl methacrylate / potassium salt, 2-acrylamido-2-methylpropane-sulfonic acid / sodium salt, and polyethylene glycol diacrylate described in Patent Document 1 are used.
- Polymer obtained by using 3-sulfopropyl methacrylate sodium salt and long-chain urethane diacrylate (trade name “NK Oligo® UA-W2A” manufactured by Shin-Nakamura Chemical Co., Ltd.) described in Patent Document 2.
- Patent Document 1 describes that the obtained transparent gel can be used as a bioadhesive.
- Patent Document 2 describes that the obtained polymer is excellent in ink absorbability, has high water resistance, and can be used as a recording material used in an ink jet recording system without blocking.
- Patent Document 3 describes that the obtained polymer can be used as an adhesive for firmly bonding a metal hub and a resin substrate for driving an optical information disk.
- Patent Document 4 a polymer obtained by crosslinking an ethylenically unsaturated bond and a sulfonic acid group or a phosphoric acid group by ionic reaction with an epoxy group has mechanical performance, solvent resistance, film-forming property, It is described that it can be used as an electrically conductive cured film excellent in adhesiveness, transparency and abrasion resistance.
- Non-Patent Document 4 the hydrophilicity of the micro-crosslinked coating formed on the glass varies depending on the alkylene chain length (C6 to C10) of the sulfoalkylene methacrylate used as the monomer (advanced contact angle and receding contact angle). It is described that it varies depending on the hydration time.
- the above-mentioned polymer has a low degree of cross-linking between molecules and high solubility in water, or it does not dissolve in water, but easily absorbs water to form a gel, or the surface is soft and easily damaged (easy), or Since the hydrophilicity is insufficient, it cannot be said to be sufficient for use as an antifogging material, an antifouling material or the like.
- Patent Document 6 as a method for producing a hydrophilic molded product, a crosslinked polymerizable monomer composition is applied to the surface of a substrate to form an incompletely polymerized crosslinked polymer by controlling the amount of ultraviolet irradiation, A two-layer structure has been proposed in which a hydrophilic monomer is applied and then irradiated again with ultraviolet rays to block or graft polymerize the hydrophilic monomer on the surface of a crosslinked polymer.
- organic monomers such as polyvalent (meth) acrylate and phosphoric acid (meth) acrylate are obtained by adding a sulfonic acid (meth) acrylate having low solubility in an organic solvent to an ethanolamine compound.
- a method of forming a coating film excellent in antifogging property and smoothness by applying a coating agent having improved solubility to the body and irradiating with UV.
- a two-layer film of a resin layer and a liquid layer is formed on the obtained substrate, and this two-layer film is tacky.
- this two-layer film is transparent, has high antifogging and smoothness, and is hydrophilic.
- the upper layer (liquid layer) of this two-layer film is easily eluted by washing or the like.
- the film mainly composed of the remaining resin layer is not tacky, but the hydrophilicity is greatly reduced and the antifogging property is lost.
- Patent Document 5 a polymer using a hydroxyl group-containing (meth) acrylamide compound as a method for solving the above problem
- physical properties required for a resin for antifouling coating include high surface hardness and high hydrophilicity.
- the physical properties required for the resin for anti-fogging coating include relatively high surface hardness and hydrophilicity more than antifouling use.
- the hydrophilic film obtained by the present invention is transparent and extremely hydrophilic, and has excellent antifogging properties, antifouling properties, antistatic properties, quick drying properties (fast drying speed of attached water), and chemical resistance, and It is hard and has excellent scratch resistance.
- this single-layer film may have low transparency, low hydrophilicity, or cracking.
- the present invention stably provides a hydrophilic cured product, for example, a monolayer film, in which anionic hydrophilic groups are concentrated (tilted) on the surface in contact with the outside air, have excellent transparency and substrate adhesion, and tend to have few cracks.
- the task is to do.
- the inventors have obtained a mixture obtained by adding a specific compound having a sulfonic acid group to a polyvalent monomer having two or more (meth) acryloyl groups. After production, when a cured product such as a monolayer film is produced from this, the inclination (concentration) of the anionic hydrophilic group to the monolayer film surface is stabilized, and a high-quality hydrophilic film under a wider production condition such as a coating condition. It was found that can be obtained.
- a specific compound having a sulfonic acid group is added to a mixture containing a specific mono (meth) acrylate having an anionic hydrophilic group and a polyvalent monomer having two or more (meth) acryloyl groups.
- the hydrophilic cured product of the present invention is Multivalent monomer (II) having two or more (meth) acryloyl groups, and compound (IV) having at least one group selected from a mercapto group, a hydroxyl group, and an amino group and a sulfonic acid group (provided that Obtained by polymerizing a mixture containing a mono (meth) acrylate having at least one anionic hydrophilic group selected from a sulfonic acid group, a carboxyl group, and a phosphoric acid group and a polyvalent monomer (II). It is characterized by that.
- the compound (IV) contained in the mixture is preferably at least one compound selected from the group of compounds represented by the following general formulas (100), (200), and (300).
- D 1 represents a mercapto group, an amino group, a methylamino group, or an ethylamino group
- Z represents a hydrogen ion, an ammonium ion, an amine ion, an alkali metal ion, or a 1 ⁇ 2 atom.
- R 1 and R 2 each independently represent H, a methyl group, an ethyl group, a methoxy group, or an ethoxy group
- nn represents an integer of 1 to 10.
- D 2 , R 3 and SO 3 Z are groups bonded to carbon on the ring contained in the above formula, and each D 2 independently represents a mercapto group, an amino group, Represents a methylamino group, an ethylamino group, or a hydroxyl group; Z represents a hydrogen ion, an ammonium ion, an amine ion, an alkali metal ion, or a 1/2 atom alkaline earth metal ion; and R 3 is independently selected.
- k is an integer of 0 to 10
- D 2 , R 3 and SO 3 Z are groups bonded to carbon on the ring contained in the above formula, and D 2 is independently a mercapto group, an amino group, Represents a methylamino group, an ethylamino group, or a hydroxyl group; Z represents a hydrogen ion, an ammonium ion, an amine ion, an alkali metal ion, or a 1/2 atom alkaline earth metal ion; and R 3 is independently selected.
- the amount of compound (IV) added to 100 parts by weight of the polyvalent methacrylate (II) is preferably in the range of 0.01 to 200 parts by weight.
- the above mixture further contains mono (meth) acrylate (I) having at least one anionic hydrophilic group selected from a sulfonic acid group, a carboxyl group, and a phosphoric acid group.
- the amount of compound (IV) added relative to 100 parts by weight of mono (meth) acrylate (I) and polyvalent methacrylate (II) is The range is preferably 0.01 to 200 parts by weight, and more preferably 0.01 to 30 parts by weight.
- the monolayer film of the present invention is formed from the above hydrophilic cured product.
- (Anion concentration ratio) (Sa / Da) is preferably 1.1 or more.
- the water contact angle of the monolayer film is preferably 30 ° or less, and more preferably 10 ° C. or less.
- the film thickness of the single layer film is usually 0.05 to 500 ⁇ m.
- the hydrophilic cured product of the present invention for example, a single layer film has high hydrophilicity and surface hardness, and exhibits not only excellent antifogging property, antifouling property, antistatic property and scratch resistance, but also transparency, substrate It tends to be excellent in adhesiveness, has few cracks, and tends to have excellent wear resistance.
- hydrophilic single layer films, hydrophilic materials containing them such as antifogging materials, antifouling materials and antistatic materials, antifogging coatings, antifouling coatings and antistatic coatings, and these
- the hydrophilic cured product of the present invention for example, a monolayer film is formed from a resin composition, and the resin composition is selected from a polyvalent monomer (II), a mercapto group, a hydroxyl group, and an amino group.
- Compound (IV) having at least one group and a sulfonic acid group provided that mono (meth) acrylate (I) having at least one anionic hydrophilic group selected from a sulfonic acid group, a carboxyl group, and a phosphoric acid group, and A resin obtained by polymerizing a mixture containing (II) is excluded.
- the polyvalent monomer (II) used in the present invention is characterized in that it contains two or more (meth) acryloyl groups which are polymerizable functional groups.
- Examples of the methacryloyl group include a (meth) acryloyloxy group, a (meth) acryloylthio group, and a (meth) acrylamide group.
- a (meth) acryloyloxy group and a (meth) acryloylthio group are preferable.
- polyvalent monomers (II) one or more bonds selected from a polyvalent monomer having one or more hydroxyl groups and two or more (meth) acryloyl groups, an ether bond and a thioether bond;
- a polyvalent monomer having the above heterocycle and two or more (meth) acryloyl groups is preferred.
- polyfunctional monomer (II) examples include: Ethylene glycol di (meth) acrylate, 1,2-propanediol di (meth) acrylate, 1,3-propanediol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol Di (meth) acrylate, 1,9-nonanediol di (meth) acrylate, 1,10-decanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, 2-methyl-1,8-octanediol di (Meth) acrylate, 2-butyl-2-ethyl-1,3-propanediol di (meth) acrylate, 1,2-bis ⁇ 3- (meth) acryloyloxy-2-hydroxy-propyloxy ⁇ ethane, 2-bis ⁇ 3- (meth)
- polyfunctional monomer (II) examples include: Bis ⁇ 2- (meth) acryloylthio-ethyl ⁇ sulfide, bis ⁇ 5- (meth) acryloylthio-3-thiapentyl ⁇ sulfide; Cyclohexanediol di (meth) acrylate, bis ⁇ (meth) acryloyloxy-methyl ⁇ cyclohexane, bis ⁇ 7- (meth) acryloyloxy-2,5-dioxaheptyl ⁇ cyclohexane, bis ⁇ (meth) acryloyloxy-poly ( Ethyleneethylene) -methyl ⁇ cyclohexane; Tricyclodecane dimethanol di (meth) acrylate; 2-propenoic acid ⁇ 2- (1,1, -dimethyl-2- ⁇ (1-oxo-2-propenyl) oxy ⁇ ethyl) -5-ethyl-1,3
- polyfunctional monomer (II) for example, Phenol novolac type epoxy (meth) acrylate (manufactured by Shin-Nakamura Chemical Co., Ltd., trade names “NK Oligo EA-6320, EA-7120, EA-7420”); Glycerin-1,3-di (meth) acrylate, 1-acryloyloxy-2-hydroxy-3-methacryloyloxy-propane, 2,6,10-trihydroxy-4,8-dioxaundecane-1,11-di (Meth) acrylate, 1,2,3-tris ⁇ 3- (meth) acryloyloxy-2-hydroxy-propyl-oxy ⁇ propane, 1,2,3-tris ⁇ 2- (meth) acryloyloxy-ethyl-oxy ⁇ Propane, 1,2,3-tris ⁇ 2- (meth) acryloyloxy-propyl-oxy ⁇ propane, 1,2,3-tris ⁇ (meth) acryloy
- polyfunctional monomer (II) for example, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, or urethane reaction product of 4-hydroxybutyl (meth) acrylate and hexamethylene diisocyanate; 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, or urethane reaction product of 4-hydroxybutyl (meth) acrylate and isophorone diisocyanate; Urethane reaction product of 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, or 4-hydroxybutyl (meth) acrylate and bis (isocyanatomethyl) norbornane; Urethane reaction of 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl
- polyfunctional monomers (II) can be produced by a known method or a method according to a known method, but can also be obtained as a commercial product.
- the compound (IV) used in the present invention is a compound other than the polyvalent monomer (II) and mono (meth) acrylate (I) described later, and is at least one selected from a mercapto group, a hydroxyl group, and an amino group. It has one group and a sulfonic acid group.
- compound (IV) contains at least one group selected from a mercapto group, a hydroxyl group, and an amino group, it becomes possible to perform a Michael addition reaction with the polyvalent monomer (II) and the like.
- reaction product itself produced by reacting the compound (IV) with the polyvalent monomer (II) or the like is inclined toward the surface in contact with the outside air of the cured product, for example, a single layer formed on the substrate
- a monolayer membrane in which the sulfonic acid group is inclined in the film thickness direction by inclining from the vicinity of the substrate (near the bottom) of the film toward the surface in contact with the outside air of the film.
- the hydrophilic cured product according to the present invention for example, when a component derived from mono (meth) acrylate (I) is contained in a monolayer film, It becomes possible to adjust the gradient of the concentration of the anionic hydrophilic group derived from the mono (meth) acrylate (I).
- the sulfonic acid group contained in the compound (IV) may be contained as it is, but a quaternary ammonium salt; an alkali metal salt such as lithium salt, sodium salt, potassium salt, rubidium salt; magnesium salt; Alkaline earth metal salts such as calcium salts; or other metal salts may be included.
- the alkali metal salt form is preferable, and the sodium salt and potassium salt forms are more preferable.
- a phenolic hydroxyl group is preferable compared to an alcoholic hydroxyl group.
- the reaction product produced by reacting the compound (IV) with the polyvalent monomer (II) and the like is inclined in a more preferable state as a hydrophilic material, and mono (meth) acrylate in the hydrophilic cured product.
- the component derived from (I) is contained, the gradient of the concentration of the anionic hydrophilic group derived from mono (meth) acrylate (I) in a hydrophilic cured product, for example, a monolayer film is more increased.
- compounds represented by the following general formula (100), general formula (200), and general formula (300) are preferable.
- D 1 represents a mercapto group, an amino group, a methylamino group, or an ethylamino group.
- D 1 mercapto group and amino group tend to be preferable.
- Z represents a hydrogen ion, an ammonium ion, an amine ion, an alkali metal ion, or a 1/2 atom alkaline earth metal ion. Among these Z, hydrogen ions and alkali metal ions tend to be preferable.
- R 1 and R 2 independently represent H, a methyl group, an ethyl group, a methoxy group, or an ethoxy group.
- nn represents an integer of 1 to 10.
- Examples of the compound represented by the general formula (100) include sodium mercaptomethylsulfonate, mercaptoethylsulfonic acid, lithium 2-mercaptoethylsulfonate, sodium 2-mercaptoethylsulfonate, and potassium 2-mercaptoethylsulfonate.
- mercaptoethylsulfonic acid sodium 2-mercaptoethylsulfonate, potassium 2-mercaptoethylsulfonate, sodium 3-mercaptopropylsulfonate, potassium 3-mercaptopropylsulfonate, aminomethylsulfonic acid, 2-amino Ethyl sulfonic acid (taurine) is preferred, and sodium 2-aminomethyl sulfonate, sodium 2-aminoethyl sulfonate, sodium N-methyl-2-aminoethyl sulfonate, and sodium 3-aminopropyl sulfonate are also preferred.
- D 2 , R 3 and SO 3 Z are groups bonded to carbon on the ring contained in the above formula, and D 2 is independently a mercapto group, amino group, methyl group an amino group, an ethylamino group or a hydroxyl group,
- Z represents a hydrogen ion, ammonium ion, amine ion, alkali metal ion, or an alkaline earth metal ion of 1/2 atom
- R 3 are each independently , H, a methyl group, an ethyl group, a methoxy group, or an ethoxy group, a fluorine atom, a chlorine atom, a bromine atom, or an element atom.
- k represents an integer of 0 to 10
- l and m each independently represents an integer of 1 to 11.
- k + 1 + m 2 to 6 + 2n.
- n represents an integer of 0 to 3.
- Examples of the compound represented by the general formula (200) include 3-aminobenzenesulfonic acid, 4-aminobenzenesulfonic acid sodium salt, 5-aminotoluene-2-sulfonic acid, 4-amino-3-methoxybenzene.
- Sulfonic acid sodium salt 3-amino-4-methoxybenzenesulfonic acid potassium salt, 7-amino-1,3-naphthalenedisulfonic acid monopotassium salt, 8-amino-1,3-naphthalenedisulfonic acid monosodium salt, 7- Amino-1,3,6-naphthalene trisulfonic acid disodium salt, 8-amino-1,3,6-naphthalene trisulfonic acid trisodium salt, 4-hydroxybenzenesulfonic acid sodium salt, 4-hydroxy-3-methoxy Benzenesulfonic acid potassium salt, 1,2-dihydroxy-3,5-benzenedi Sulfonic acid disodium salt, 2-hydroxy-6,8-naphthalenesulfonic acid dipotassium salt, such as 8-hydroxy-1,3,6-tri-sulfonic acid trisodium salt.
- 4-aminobenzenesulfonic acid sodium salt 5-aminotoluene-2-sulfonic acid sodium salt, 7-amino-1,3-naphthalenedisulfonic acid monopotassium salt, 8-amino-1,3,6 -Naphthalene trisulfonic acid trisodium salt and 4-hydroxybenzenesulfonic acid sodium salt are preferred.
- D 2 , R 3 and SO 3 Z are groups bonded to carbon on the ring contained in the above formula, and D 2 is independently a mercapto group, amino group, methyl group an amino group, an ethylamino group or a hydroxyl group,
- Z represents a hydrogen ion, ammonium ion, amine ion, alkali metal ion, or an alkaline earth metal ion of 1/2 atom
- R 3 are each independently , H, a methyl group, an ethyl group, a methoxy group, or an ethoxy group, a fluorine atom, a chlorine atom, a bromine atom, or an element atom.
- r represents an integer of 0 to 6
- Examples of the compound represented by the general formula (300) include sodium 1-aminoanthraquinone-2-sulfonate, sodium 1-aminoanthraquinone-4-sulfonate, sodium 1-aminoanthraquinone-8-sulfonate, -Sodium amino-4-bromoanthraquinone-2-sulfonate, sodium 1-amino-2,4-dihydroxyanthraquinone-3-sulfonate, and the like.
- sodium 1-amino-4-bromoanthraquinone-2-sulfonate and sodium 1-amino-2,4-dihydroxyanthraquinone-3-sulfonate are preferable.
- the compound (IV) is obtained by transferring a reaction product having a sulfonic acid group generated by the Michael addition reaction between the compound (IV) and the polyvalent monomer (II) to the surface of the hydrophilic cured product, for example, a single layer film that is in contact with the outside air. Added to incline (concentrate).
- a hydrophilic cured material for example, a monolayer film
- anionic hydrophilic property derived from mono (meth) acrylate (I) is added to adjust the inclination (concentration) to the surface of the monolayer film of the present invention.
- the hydrophilic cured product of the present invention is formed from a resin composition.
- the resin composition in addition to the polyvalent monomer (II) and the compound (IV), sulfone is used.
- sulfone is used.
- it contains a resin obtained by polymerizing a mixture containing mono (meth) acrylate (I) having at least one anionic hydrophilic group selected from an acid group, a carboxyl group, and a phosphate group. It is an aspect.
- the mono (meth) acrylate (I) has at least one anionic hydrophilic group selected from a sulfonic acid group, a carboxyl group, and a phosphoric acid group.
- the anionic hydrophilic group may be contained as it is, but a quaternary ammonium salt; an alkali metal salt such as a lithium salt, a sodium salt, a potassium salt, or a rubidium salt; an alkaline earth such as a magnesium salt or a calcium salt Metal salts; or other metal salts may be included.
- the alkali metal salt form is preferable, and the sodium salt, potassium salt, and rubidium salt forms are more preferable.
- mono (meth) acrylate (I) monomethacrylate represented by the following general formula (1) is preferable.
- each of M1 and M2 represents a monovalent cation selected from a hydrogen ion, an ammonium ion, an amine ion, and an alkali metal ion, or an alkaline earth metal ion that is a divalent cation. May be the same or different.
- X is a hydrophilic anion containing a (meth) acryloyl group represented by the following general formulas (1-1) to (1-4).
- the amine ion is a monovalent cation derived from a primary amine, secondary amine, or tertiary amine.
- the formula amount of X is usually in the range of 50 to 18,000, preferably 100 to 1,000, more preferably 170 to 500.
- X represents an oligomer containing a structure derived from X as a repeating unit by reacting carbon-carbon double bonds contained in groups represented by the following general formulas (1-1) to (1-4). Those in which the repeating unit is usually in the state of 2 to 20) may be used.
- the molecular weight of this oligomer is usually in the range of 100 to 30,000, preferably 200 to 10,000, more preferably 300 to 5,000.
- J and J ′ each represent H or CH 3 which may be the same or different, n represents 0 or 1, and R and R ′ represent These are hydrocarbon groups having 1 to 600 carbon atoms which may contain an aromatic group, alicyclic hydrocarbon group, ether group or ester group, which may be the same or different.
- the number of carbon atoms of R and R ′ is preferably 2 to 100, more preferably 2 to 20.
- Examples of the mono (meth) acrylate (I) represented by the general formula (1) include mono (meth) acrylates represented by the following general formula (1-1-1) and general formula (1-1-2). preferable.
- J represents H or CH 3 .
- R 1 and R 2 independently represent H, CH 3 , or an ethyl group. From the viewpoint of ease of synthesis, R 1 and R 2 are preferably H.
- N represents an integer of 1 to 20.
- n is preferably an integer of 2 to 10, more preferably an integer of 2 to 4.
- L represents an integer from 2 to 10. l is preferably from 2 to 6, and more preferably from 2 to 4.
- M represents a monovalent cation selected from hydrogen ions, ammonium ions, amine ions, and alkali metal ions, or an alkaline earth metal ion that is a divalent cation.
- ammonium ions and amine ions ammonium ions, methylamine ions, dimethylamine ions, and triethylamine ions are preferable.
- alkali metal ions examples include lithium ions, sodium ions, potassium ions, and rubidium ions.
- alkaline earth metal ions include beryllium ions, magnesium ions, calcium ions, and strontium ions.
- monovalent alkali metal ions are preferable, and sodium ions, potassium ions, and rubidium ions are more preferable.
- the molecular weight of these mono (meth) acrylates (I) is usually in the range of 168 to 18,000, preferably 180 to 1,000, more preferably 200 to 500.
- the mono (meth) acrylate (I) may be used alone or in combination of two or more. Further, these mono (meth) acrylates (I) are in the form of oligomers produced by reaction of the mono (meth) acrylates (I), or as a mixture of mono (meth) acrylates and the oligomers. It may be used.
- the mono (meth) acrylate (I) can be produced by a known method or a method according to a known method.
- the mono (meth) acrylate (I) can be obtained by the methods described in JP-B-49-36214, JP-B-51-9732, JP-A-63-284157, and U.S. Pat. No. 3,024,221.
- the mono (meth) acrylate represented by the general formula (1-1-1) is obtained by, for example, a method of reacting (meth) acrylic acid and propane sultone in the presence of an alkali metal carbonate.
- the mono (meth) acrylate represented by the general formula (1-1-2) can be produced, for example, by partially halogenating a hydroxyl group of a polyol compound with a hydrogen halide, and then substituting the substituted halogen with an alkali metal sulfonate.
- the compound (IV) when added to a mixture containing the polyvalent monomer (II) and the mono (meth) acrylate (I), it reacts with a group contained in the mixture, typically Michael addition. A reaction is thought to occur.
- the mixture containing the polyvalent monomer (II) and the mono (meth) acrylate (I) contains the largest amount of the polyvalent monomer (II)
- the compound (IV) It is considered to react with the monomer (II) with the highest probability and become the main reaction.
- compound (IV) is added to a mixture of polyvalent monomer (II) mono (meth) acrylate (I). Since compound (IV) is almost solid, the reaction hardly proceeds even if it is added to the mixture as it is. Therefore, compound (IV) is usually added after being dissolved in a solvent.
- the solvent include polar solvents such as water, alcohols, dimethyl sulfoxide, sulfolane, dimethylformaldehyde, N-methylpyrrolidone, N, N-dimethylimidazolidinone, and a solvent obtained by mixing these solvents.
- heating may be performed at room temperature or higher (for example, in the range of 30 to 100 ° C.) instead of or in addition to the above catalyst addition. Further, when it is desired to improve the reaction rate, it may be heated to 100 ° C. or higher, but the (meth) acryloyl group contained in the polyvalent monomer (II) may be polymerized.
- reaction (B) The reaction of the compound having an amino group and sulfonic acid group, which is one of anionic hydrophilic groups, and the polyvalent monomer (II) proceeds when mixed at room temperature.
- the sulfonic acid group is in the form of a salt (for example, when the compound is aminoethylsulfonic acid sodium salt)
- the amino group at the reaction site has almost no interaction with the sulfonic acid group and is in a free state. Therefore, the reaction with the polyvalent monomer (II) proceeds easily only by mixing at room temperature without adding a basic catalyst.
- the reaction (B) tends to be faster than the reaction (A).
- the compound having an amino group and a sulfonic acid group may be dropped little by little, or the reaction may be carried out while removing heat with a cold water bath or the like.
- the sulfonic acid group contained in the compound having an amino group and a sulfonic acid group is not a salt (for example, when the compound is aminoethylsulfonic acid)
- the amino group and sulfone are intramolecularly or intermolecularly.
- the reaction may become slow because a salt in which the acid group interacts is formed and the reaction of the amino group as the reaction site is inhibited.
- the sulfonic acid group may be neutralized with a base such as sodium methoxide, sodium hydroxide or potassium hydroxide.
- reaction rate When it is desired to improve the reaction rate, it may be heated to room temperature or higher (for example, in the range of 30 to 100 ° C.) as in (A). In addition, although you may heat above 100 degreeC, the (meth) acryloyl group contained in polyvalent monomer (II) may superpose
- the polyvalent monomer (II) can be added to the polyvalent monomer (II) with high probability. It is considered that a reaction product (polyvalent monomer) having an acid group introduced is produced. Therefore, when mono (meth) acrylate (I) is included in the monomer composition, polyvalent monomer (II), compound (IV), mono (meth) acrylate (I), etc. are mixed. When the mixture obtained in this manner is applied to a substrate, a reaction product by mixing, typically a reaction product having the sulfonic acid group introduced therein, is introduced in the process of drying the solvent contained in the mixture.
- the mono (meth) acrylate (I) interacts with the poly (mono) monomer (II) having two or more (meth) acryloyl groups and the mono (meth) acrylate (I).
- the poly (mono) monomer (II) having two or more (meth) acryloyl groups and the mono (meth) acrylate (I).
- the polyvalent polyhydric acid has a higher probability than the case where mono (meth) acrylate (I) is contained. It is considered that a reaction product (polyvalent monomer) in which a sulfonic acid group is introduced into the monomer (II) is generated. Therefore, even when the monomer composition does not contain mono (meth) acrylate (I), it was obtained by mixing the polyvalent monomer (II), the compound (IV) and the like.
- the reaction product by mixing typically the reaction product introduced with the sulfonic acid group described above, interacts with the solvent in the process of drying the solvent contained in the mixture.
- the high-quality hydrophilic cured product of the present invention for example, a single layer film having hydrophilicity can be obtained.
- the blending ratio of the mono (meth) acrylate (I) and the polyvalent monomer (II) is a hydrophilic cured product, for example, although it can be appropriately set according to the properties required for the monolayer film, the molar ratio of mono (meth) acrylate (I): polyvalent monomer (II) is usually in the range of 15: 1 to 1: 1000, preferably Is in the range of 2: 1 to 1: 1000, more preferably in the range of 1: 1 to 1: 500, still more preferably in the range of 1: 2 to 1: 500, particularly preferably in the range of 1: 3 to 1: 300. use.
- the mono (meth) acrylate (I): polyvalent monomer (II) is preferably in a molar ratio of 15: 1 to 1:30, more preferably 2: 1 to 1:20. More preferably, it may be used in the range of 1: 1 to 1:25, particularly preferably in the range of 1: 1 to 1:15, and most preferably in the range of 1: 3 to 1:23.
- the compounding ratio of the compound (IV) can be appropriately set according to the properties required for a hydrophilic cured product, for example, a monolayer film, or typically, when mono (meth) acrylate (I) is not used, Alternatively, when the amount of mono (meth) acrylate (I) used is small, for example, it is usually in the range of 0.01 to 200 parts by weight, preferably 100 parts by weight of polyvalent monomer (II), preferably It is used in the range of 0.01 to 100 parts by weight, more preferably 0.05 to 80 parts by weight, still more preferably 0.1 to 60 parts by weight.
- the compound (IV) is a total of 100 parts by weight of mono (meth) acrylate (I) and polyvalent monomer (II). On the other hand, it may be used in the range of usually 0.01 to 30 parts by weight, preferably 0.05 to 20 parts by weight, more preferably 0.1 to 10 parts by weight.
- Monomer composition comprising the polyvalent monomer (II) and the compound (IV), and a single composition comprising the polyvalent monomer (II), the compound (IV) and the mono (meth) acrylate (I)
- the monomer composition may further contain another monomer (III) different from these.
- monomer (III) a monovalent monomer having a polymerizable unsaturated double bond different from mono (meth) acrylate (I), mono (meth) acrylate (I), and polyvalent monomer
- monomer III a monovalent monomer having a polymerizable unsaturated double bond different from mono (meth) acrylate (I), mono (meth) acrylate (I), and polyvalent monomer
- Examples of the other monomer (III) include (meth) acrylic acid, hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, methyl (meth) acrylate, (meth) ) Ethyl acrylate, butyl (meth) acrylate, isobornyl (meth) acrylate, N, N-dimethyl-aminoethyl- (meth) acrylate, N, N-dimethyl-aminoethyl- (meth) acrylate quaternized product, Sodium vinyl sulfonate, styrene sulfonic acid, sodium styrene sulfonate, potassium styrene sulfonate, 2-acrylamido-2-methylpropane sulfonic acid, potassium 2-acrylamido-2-methylpropane sulfonate, allyl (meth)
- the blending ratio of the other monomer (III) can also be appropriately set according to the properties required for the hydrophilic cured product, for example, a single layer film.
- the other monomer (III) is a total mole of mono (meth) acrylate (I) and polyvalent monomer (II). It can be used in the range of usually 1 to 100 mol%, preferably 1 to 49 mol%, more preferably 1 to 40 mol%, based on the number.
- the other monomer (III) is usually 1 to 100 mol%, preferably 1 to 49 mol%, more preferably 1 to 40 mol% based on the total number of moles of the polyvalent monomer (II). You may use in the range of mol%.
- the other monomer (III) is usually 1 to 49 mol%, preferably 1 to 30 mol%, more preferably 3 to 20 mol%, based on the total number of moles of the polyvalent monomer (II).
- the other monomer (III) includes a mono (meth) acrylate (I) and a polyvalent monomer (II) when the monomer composition contains mono (meth) acrylate (I). ) May be used in the range of usually 1 to 49 mol%, preferably 1 to 30 mol%, more preferably 3 to 20 mol%.
- a monomer composition containing the polyvalent monomer (II) and the compound (IV), and the polyvalent monomer (II), the compound (IV), and the mono (meth) acrylate (I).
- the monomer composition includes a polymerization initiator, a polymerization accelerator, an ultraviolet absorber, a hindered amine light stabilizer (HALS), a solvent, a catalyst, an infrared absorber, a radical scavenger, an internal release agent.
- Additives such as an agent, an antioxidant, a polymerization inhibitor, a dye, a binder, and a leveling agent may be contained.
- the hydrophilic cured product of the present invention for example, a monolayer film
- the mixture is polymerized.
- a photopolymerization initiator is added to the mixture.
- the photopolymerization initiator include a photoradical polymerization initiator, a photocationic polymerization initiator, and a photoanionic polymerization initiator.
- a photoradical polymerization initiator is preferable.
- photo radical polymerization initiator examples include Irgacure 127 (manufactured by Ciba Specialty Chemicals), Irgacure 651 (manufactured by Ciba Specialty Chemicals), and Irgacure 184 (Ciba Specialty Chemicals).
- Darocur 1173 (manufactured by Ciba Specialty Chemicals), benzophenone, 4-phenylbenzophenone, Irgacure 500 (manufactured by Ciba Specialty Chemicals), Irgacure 2959 (manufactured by Ciba Specialty Chemicals) Irgacure 907 (Ciba Specialty Chemicals), Irgacure 369 (Ciba Specialty Chemicals), Irgacure 1300 (Ciba Specialty Chemicals) Irgacure 819 (manufactured by Ciba Specialty Chemicals), Irgacure 1800 (manufactured by Ciba Specialty Chemicals), Darocur TPO (manufactured by Ciba Specialty Chemicals), Darocur 4265 (Ciba Specialty Chemicals) Irgacure OXE01 (Ciba Specialty Chemicals), Irgacure OXE02
- Irgacure 127 (manufactured by Ciba Specialty Chemicals), Irgacure 184 (manufactured by Ciba Specialty Chemicals), Darocur 1173 (manufactured by Ciba Specialty Chemicals), Irga Cure 500 (manufactured by Ciba Specialty Chemicals), Irgacure 819 (manufactured by Ciba Specialty Chemicals), Darocur TPO (manufactured by Ciba Specialty Chemicals), Esacure ONE (manufactured by Lamberty), Esacure KIP100F (Lamberti), Esacure KT37 (Lamberti) and Esacure KTO46 (Lamberti) are preferred.
- photocationic polymerization initiator examples include Irgacure 250 (manufactured by Ciba Specialty Chemicals), Irgacure 784 (manufactured by Ciba Specialty Chemicals), Esacure 1064 (manufactured by Lamberti), CYRAURE® UVI6900. (Union Carbide Japan), Adeka optomer SP-172 (Asahi Denka), Adeka optomer SP-170 (Asahi Denka), Adeka optomer SP-152 (Asahi Denka), Adekaopt Mar SP-150 (manufactured by Asahi Denka Co., Ltd.).
- photopolymerization initiators are used in an amount of 100% by weight based on the total amount of the polyvalent monomer (II) and other monomer (III) contained as required.
- the range is preferably from 0.1 to 20 parts by weight, more preferably from 0.5 to 10 parts by weight, still more preferably from 1 to 5 parts by weight.
- mono (meth) acrylate (I) is included in the monomer composition, mono (meth) acrylate (I), polyvalent monomer (II), and other components included as necessary
- a photopolymerization accelerator When using the photopolymerization initiator, a photopolymerization accelerator may be used in combination.
- photopolymerization accelerator examples include 2,2-bis (2-chlorophenyl) -4,5′-tetraphenyl-2′H- ⁇ 1,2 ′> biimidazolol, tris (4-dimethylaminophenyl) methane, Examples include 4,4′-bis (dimethylamino) benzophenone, 2-ethylanthraquinone, camphorquinone, and the like.
- the hydrophilic cured product of the present invention for example, a monolayer film, for example, as an antifouling material or an antifogging material so that it does not deteriorate even when exposed to the outside for a long period of time
- the polyvalent monomer ( II) and a monomer composition containing compound (IV) and a monomer composition containing the above polyvalent monomer (II), compound (IV), and mono (meth) acrylate (I)
- the mixture is made into a weather resistant formulation to which an ultraviolet absorber and a hindered amine light stabilizer are added.
- the ultraviolet absorber is not particularly limited.
- a benzotriazole ultraviolet absorber a triazine ultraviolet absorber, a benzophenone ultraviolet absorber, a benzoate ultraviolet absorber, a propanedioic acid ester ultraviolet absorber, or an oxanilide type.
- Various ultraviolet absorbers such as an ultraviolet absorber can be used.
- Examples of the ultraviolet absorber include 2- (2H-benzotriazol-2-yl) -p-cresol, 2- (2H-benzotriazol-2-yl) -4-tert-butylphenol, 2- (2H- Benzotriazol-2-yl) -4,6-di-tert-butylphenol, 2- (2H-benzotriazol-2-yl) -4,6-bis (1-methyl-1-phenylethyl) phenol, 2- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethyl-butyl) -6- (1-methyl-1-phenylethyl) phenol, 2- (2H-benzotriazole- 2-yl) -4- (3-one-4-oxa-dodecyl) -6-tert-butyl-phenol, 2- ⁇ 5-chloro (2H) -benzotriazole-2- L ⁇ -4- (3-one-4-oxa-dodecyl
- Benzophenone UV absorbers such as 2,4-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate; propandioic acid- ⁇ (4-methoxy Propanediocic acid ester ultraviolet absorbers such as phenyl) -methylene ⁇ -dimethyl ester, trade name hostabin PR-25 (manufactured by Clariant Japan KK), trade name hostabin B-CAP (manufactured by Clariant Japan KK); 2-ethyl-2'-ethoxy-oxanilide, quotient Name Sanduvor VSU (Clariant Japan KK) oxanilides-based ultraviolet absorbers such as, and the like.
- triazine ultraviolet absorbers tend to be preferable.
- HALS hindered amine light stabilizer
- HALS Hindered Amin Light Stabilizers
- hindered amine light stabilizer examples include trade name Tinuvin 111FDL (manufactured by Ciba Specialty Chemicals Co., Ltd.), bis (1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate (product) Name Tinuvin 123 (manufactured by Ciba Specialty Chemicals Co., Ltd.), brand name Tinuvin 144 (manufactured by Chiba Specialty Chemicals Co., Ltd.), brand name Tinuvin 292 (manufactured by Ciba Specialty Chemicals Co., Ltd.), trade name Tinuvin 765 (manufactured by Ciba Specialty Chemicals Co., Ltd.), trade name Tinuvin 770 (manufactured by Ciba Specialty Chemicals Co., Ltd.), N, N′-bis (3-aminopropyl) ethylenediamine-2,4-bis [ N-butyl-N- (1,2,2,6,6-pen
- the addition amount of the ultraviolet absorber and the hindered amine light stabilizer is not particularly limited, but the total amount of the polyvalent monomer (II) and other monomer (III) contained as necessary is 100 parts by weight.
- the ultraviolet absorber is usually 0.1 to 20 parts by weight, preferably 0.5 to 10 parts by weight
- the hindered amine light stabilizer is usually 0.1 to 10 parts by weight, preferably 0.5 to 5 parts by weight. Part by weight, more preferably in the range of 1 to 3 parts by weight.
- the ultraviolet absorber is usually 0.1 to 20 parts by weight, preferably 0.5 to 10 parts by weight
- the hindered amine light stabilizer is usually 0.1 to 100 parts by weight of the total amount of the monomers (III). It may be in the range of 1 to 10 parts by weight, preferably 0.5 to 5 parts by weight, more preferably 1 to 3 parts by weight.
- the monomer composition containing the polyvalent monomer (II) and the compound (IV), and the polyvalent single amount The hydrophilic cured product obtained, for example, a monolayer film, while sufficiently polymerizing a mixture such as a monomer composition containing the body (II), the compound (IV), and the mono (meth) acrylate (I)
- the effect of improving weather resistance is increased.
- the addition amount of the ultraviolet absorber or the hindered amine light stabilizer is less than the above range, the effect of improving the weather resistance of the obtained hydrophilic cured product, for example, a single layer film tends to be small.
- the addition amount of the ultraviolet absorber and the hindered amine light stabilizer exceeds the above range, the polymerization of the monomer composition may be insufficient.
- the solvent that can be mixed with the monomer composition is not particularly limited as long as a cured product having a hydrophilic surface is obtained.
- the solvent may react with the components contained in the monomer composition used in the present invention. Solvents that are too strong to interact, such as forming salts with the constituents, are not preferred.
- ethanolamine diethanolamine, triethanolamine, N-ethyl-ethanolamine, N- (2-ethylhexyl) ethanolamine, N-butyl-diethanolamine, N-hexyl-diethanolamine, N-lauryl-diethanolamine, N-cetyl- Ethanolamine compounds having a hydroxyethylamino structure such as diethanolamine [NRaRb (CH 2 CH 2 OH): Ra and Rb are independently hydrogen, an alkyl group having 1 to 15 carbon atoms, or a CH 2 CH 2 OH group. is there.
- the solvent examples include methanol, ethanol, isopropanol (IPA), 1-propanol, 1-butanol, isobutanol, 2-butanol, 1-pentanol (1-amyl alcohol), isopentanol, 2-methyl- Monohydric alcohols such as 1-butanol, benzyl alcohol, tetrahydrofurfuryl alcohol, cyclohexanol, polyhydric alcohols such as ethylene glycol, 1,3-propylene glycol, 1,2-propylene glycol, glycerin; Ketones such as cyclohexanone, 2-methylcyclohexanone, acetone; Carboxylic acids such as formic acid, acetic acid, propionic acid; Carboxylates such as methyl acetate, ethylene glycol monoacetate, ethylene glycol diacetate; Carbonates such as ethylene carbonate and 1,2-propylene carbonate; Ethers such as dioxane, anisole, alkylene glyco
- the above solvent is a solvent having a relatively high polarity.
- a solvent having a high polarity tends to be preferable.
- a highly polar solvent is mixed in the monomer composition, a reaction product in which a sulfonic acid group is introduced into the polyvalent monomer (II), and a mono (meth) acrylate (I) in the monomer composition
- the mono (meth) acrylate (I) having an anionic hydrophilic group is removed from the surface of the coating material in contact with the outside air in the process of removing the solvent from the coating material of the mixture.
- the surface of the coating is inclined (concentrated) to the surface of the coated material (when the mixture containing the monomer composition is coated on the substrate, the surface opposite to the contact surface with the substrate).
- a structure is formed. Therefore, the solvent preferably has an appropriate interaction with the anionic hydrophilic group contained in the monomer composition in order to easily cause the inclination (concentration).
- the solubility parameter (SP value) is widely known as an index representing such polarity.
- the solubility parameter (SP value) can be easily calculated by the following simple calculation method.
- H25 Hb ⁇ ⁇ 1 + 0.175 ⁇ (Tb ⁇ 25) / 100 ⁇ (unit: cal / mol), Tb: boiling point (° C.) 3)
- Intermolecular bond energy E H25-596 (unit: cal / mol) 4)
- the solubility parameter (SP value) ⁇ (cal / cm 3 ) calculated by a simple calculation method is preferably 9.3 or more, and more preferably 9.5 or more.
- the resulting hydrophilic cured product of the present invention for example, the structure of a single layer film, specifically, the anionic hydrophilic group inclined structure (surface concentration) is likely to be incomplete, The hydrophilicity tends to decrease.
- solvent within the above preferable solubility parameter range examples include methanol, ethanol, 1-propanol, isopropanol (IPA), 1-butanol, isobutanol, 1-pentanol (1-amyl alcohol), cyclohexanol; cyclohexanone; 2-methoxy-1-propanol (methoxypropanol), 2-methoxy-1-ethanol (methoxyethanol), 2-ethoxy-1-ethanol (ethoxyethanol); DMF (N, N′-dimethylformamide); acetonitrile; water Etc.
- IPA isopropanol
- 1-butanol isobutanol
- 1-pentanol 1-amyl alcohol
- 2-methoxy-1-propanol methoxypropanol
- 2-methoxy-1-ethanol methoxyethanol
- 2-ethoxy-1-ethanol ethoxyethanol
- DMF N, N′-dimethylformamide
- acetonitrile water Et
- the solvent is a mixed solvent containing two or more compounds
- at least one of them should satisfy the condition of the solubility parameter.
- the solubility parameter of the one compound contained in the solvent satisfies the above conditions, a reaction product in which a sulfonic acid group is introduced into the polyvalent monomer (II), and a monomer composition
- mono (meth) acrylate (I) is contained in the anionic hydrophilic group derived from the mono (meth) acrylate (I) compound (1) having an anionic hydrophilic group
- the one compound contained in the solvent Have a certain interaction, when the mixture containing this monomer composition is applied to a substrate or the like and the solvent is removed from the mixture, the surface of the applied mixture in contact with the outside air is This is because there is no change in the movement of the anionic hydrophilic group accompanying one compound, and as a result, the anionic hydrophilic group is concentrated on the surface.
- the amount of the solvent contained in the above mixture can be appropriately determined in consideration of the physical properties, economy, etc. of the hydrophilic cured product obtained by the present invention, such as a single layer film.
- the amount of the solvent used is the solid content (polyvalent monomer (II), compound (IV), monomer (I) contained as necessary, necessary) contained in the mixture containing the monomer composition.
- concentration of monomer (III) and the total amount of the above additives) usually 1 to 99 wt%, preferably 10 to 90 wt%, and more The range is preferably 20 to 80 wt%, more preferably 30 to 70 wt%.
- the mixture containing the solvent is polymerized to form the hydrophilic cured product of the present invention, for example, a single layer film, after applying the mixture containing the monomer composition to the substrate, etc., before performing the polymerization described later, It is preferable to sufficiently dry the mixture in order to remove the solvent.
- the reaction product in which a sulfonic acid group is introduced into the polyvalent monomer (II) and the monomer composition contains mono (meth) acrylate (I) Since the anionic hydrophilic group derived from the mono (meth) acrylate (I) having an anionic hydrophilic group is less transferred to the surface of the coated product in contact with the outside air, the hydrophilicity of the obtained hydrophilic cured product is reduced.
- the anionic hydrophilic group moves to the surface of the coating material that contacts the outside air, if the solvent remains in the mixture, the atmosphere (on the surface that contacts the outside air) ( The repulsive interaction with (hydrophobic) tends to work, and the anionic hydrophilic group tends to move more easily into the coating. For this reason, the obtained hydrophilic cured product, for example, the anionic hydrophilic group of the monolayer film may be insufficiently inclined to the surface in contact with the outside air, and the hydrophilicity may be lowered. There is also a tendency for the adhesion to decrease.
- the residual solvent immediately before polymerization in the above mixture tends to be preferably smaller, and is usually 10 wt% or less, preferably 5 wt% or less, more preferably 3 wt% or less, and further preferably 1 wt% or less.
- the drying temperature is determined as appropriate, but is usually in the range of room temperature to 200 ° C, preferably in the range of 30 to 150 ° C, and more preferably in the range of 40 to 100 ° C.
- the drying time of the above mixture may be determined in a timely manner, but in consideration of productivity, a shorter time tends to be preferable. For example, it may be dried for a time of usually 10 minutes or less, preferably 5 minutes or less, more preferably 3 minutes or less, and even more preferably 2 minutes or less.
- the atmosphere during drying may be air or an inert gas such as nitrogen, but the appearance of a hydrophilic cured product (for example, a single layer film) obtained with a lower humidity in the atmosphere deteriorates (Yuzu skin, reduced transparency, etc.) It tends to be favorable such as not.
- the humidity of the atmosphere is preferably 70% or less, more preferably 60% or less, and even more preferably 55% or less.
- the wind speed is preferably 30 m / sec or less, more preferably in the range of 0.1 to 30 m / sec, still more preferably in the range of 0.2 to 20 m / sec, particularly preferably 0.
- the range is 3 to 10 m / sec.
- the pressure at the time of drying is not particularly limited, and normal pressure or reduced pressure is relatively preferable, but may be slightly pressurized.
- Monomer composition comprising the polyvalent monomer (II) and the compound (IV), and a single composition comprising the polyvalent monomer (II), the compound (IV) and the mono (meth) acrylate (I)
- additives other than the said additive For example, silica, titanium oxide, other metals and metal oxides can be added for the purpose of improving mechanical and thermal strength, imparting photoresponsiveness and bactericidal properties, etc., and the above mixture
- a monomer having a sulfur atom can be added, and in order to impart bactericidal and antibacterial properties, metals such as silver and lithium can be used. Salts, iodine, iodonium salts, and the like can be added to the composition.
- the addition amount of these additives can be appropriately set according to the purpose, but with respect to the total of 100 parts by weight of the polyvalent monomer (II) and other monomers (III) contained as necessary, Usually, it is in the range of 0.01 to 200 wt%, preferably in the range of 0.1 to 100 wt%. Further, when mono (meth) acrylate (I) is contained in the monomer composition, mono (meth) acrylate (I), polyvalent monomer (II), and monomer contained as necessary It may be in the range of usually 0.01 to 200 wt%, preferably 0.1 to 100 wt%, based on the total mass of (III).
- the hydrophilic cured product of the present invention for example, a single layer film can be obtained by coating and polymerizing.
- limiting in particular in the said polymerization method For example, it can superpose
- the above polymerization can be carried out in the air, but the polymerization is preferably carried out in an inert gas atmosphere such as nitrogen because the polymerization time can be shortened.
- a heat radical generator such as an organic peroxide is usually added to the mixture containing the monomer composition, and the mixture is heated in the range of room temperature to 300 ° C.
- energy rays having a wavelength range of 0.0001 to 800 nm can be used as the radiation.
- the radiation is classified into ⁇ -rays, ⁇ -rays, ⁇ -rays, X-rays, electron beams, ultraviolet rays, visible light, and the like, and can be appropriately selected and used according to the composition of the mixture.
- ultraviolet rays are preferable, and the output peak of ultraviolet rays is preferably in the range of 200 to 450 nm, more preferably in the range of 230 to 445 nm, still more preferably in the range of 240 to 430 nm, and particularly preferably in the range of 250 to 400 nm.
- ultraviolet rays in the above output peak range are used, there are few problems such as yellowing and thermal deformation during polymerization, and the polymerization can be completed in a relatively short time even when an ultraviolet absorber is added.
- ultraviolet absorber or a hindered amine stabilizer when added to the monomer composition, it is preferable to use ultraviolet rays having an output peak in the range of 250 to 280 nm or 370 to 430 nm.
- the mixture When the monomer composition is polymerized by radiation, the mixture is applied to a substrate or the like for the purpose of avoiding the inhibition of polymerization by oxygen, and is dried as necessary. May be coated with a coating material (film or the like) and polymerized by irradiation with radiation.
- a coating material film or the like
- oxygen oxygen
- the covering material may be any material and form as long as it is a material capable of blocking oxygen, but is preferably a film from the viewpoint of operability, and among these films, a transparent film that is easily radiation-polymerized is preferable.
- the thickness of the film is usually in the range of 3 to 200 ⁇ m, among which 5 to 100 ⁇ m is preferable, and 10 to 50 ⁇ m is more preferable.
- Examples of the material of the film preferably used as the coating material include, for example, polyvinyl alcohol (PVA), vinyl alcohol polymers such as ethylene / vinyl alcohol copolymer, polyacrylamide, polyisopropylacrylamide, polyacrylonitrile, and polycarbonate (PC). , Polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polystyrene (PS), and biaxially oriented polypropylene (OPP).
- PVA polyvinyl alcohol
- vinyl alcohol polymers such as ethylene / vinyl alcohol copolymer
- polyacrylamide polyacrylamide
- polyisopropylacrylamide polyacrylonitrile
- PC polycarbonate
- PMMA Polymethyl methacrylate
- PET polyethylene terephthalate
- PS polystyrene
- OPP biaxially oriented polypropylene
- an electron beam in the range of 0.01 to 0.002 nm as radiation because polymerization can be completed in a short time.
- the surface concentration (Sa) of the sulfonic acid group, carboxyl group and phosphoric acid group which are anionic hydrophilic groups, and these anionic hydrophilic groups The slope of the deep portion concentration (Da) (anion concentration ratio) (Sa / Da) at a point where the single layer film thickness is 1/2 is usually 1.1 or more.
- the gradient (anion concentration ratio) (Sa / Da) is preferably 1.2 or more, more preferably 1.3 or more.
- the gradient (anion concentration ratio) (Sa / Da) is usually 20.0 or less.
- the single-layer film of the present invention is usually provided as a film having an anionic hydrophilic group provided on at least one surface of a substrate.
- anionic hydrophilic groups are distributed from the depth of the film on the substrate side to the surface, and in particular, the concentration difference (gradient (anion concentration) is distributed so that the monolayer film is distributed on the outermost surface in contact with the outside air. Ratio) (Sa / Da)).
- a hydrophilic anionic hydrophilic group When applied to a substrate or the like and polymerized by heat, radiation, etc., a hydrophilic anionic hydrophilic group self-assembles on the surface in contact with the outside air, and then a film made of a cured product made of a resin composition is formed. It is believed that there is.
- a monolayer film comprising a cured product obtained by polymerizing a mixture containing mono (meth) acrylate (I) and the polyvalent monomer (II) without the compound (IV). If the conditions for applying the mixture to the substrate or the like change, the distribution of the anionic hydrophilic group in the monolayer film may change relatively significantly and may not be stable. As a result of I) being excessively inclined on the surface in contact with the outside air, bleed out may occur and transparency may be lowered.
- the hydrophilic cured product of the present invention obtained by polymerizing a mixture containing the compound (IV), such as a single layer film, such a phenomenon hardly occurs, and the hydrophilic cured product having the above-mentioned anion concentration ratio, For example, a single layer film can be manufactured stably. Furthermore, in the case of a cured product obtained by polymerizing a mixture composed of a polyvalent monomer (II) that does not contain the compound (IV) and mono (meth) acrylate (I), for example, a single layer film, Since the inclined structure of the anionic hydrophilic group is not formed, it is difficult to make it hydrophilic.
- the monolayer film made of the hydrophilic cured product of the present invention has a high concentration of anions of a highly hydrophilic group on the surface thereof, so that it is antifogging, antifouling or self-cleaning, and antistatic. Or it is excellent in dust adhesion prevention property.
- the gradient is determined by anionic hydrophilicity between a surface of a single-layer film that is in contact with the outside air and a half-thickness point of the single-layer film.
- concentrations of the sulfonic acid group, carboxyl group, and phosphoric acid group, which are groups, are respectively measured using a time-of-flight secondary ion mass spectrometer (TOF-SIMS) and obtained from the values.
- TOF-SIMS time-of-flight secondary ion mass spectrometer
- the water contact angle of the monolayer film made of the hydrophilic cured product of the present invention is usually 30 ° or less, preferably 20 ° or less, more preferably 10 ° or less.
- a monolayer film having a water contact angle of the above value or less is highly hydrophilic and easily blends (wet) with water and is excellent as a hydrophilic material. Therefore, it is useful for antifogging materials, antifogging coatings (hereinafter also referred to as antifogging coatings), antifouling materials, antifouling coatings or self-cleaning coatings, and antistatic materials, antistatic coatings or dust adhesion prevention coatings, etc. is there.
- antifogging coatings antifogging coatings
- antifouling materials antifouling coatings or self-cleaning coatings
- antistatic materials antistatic coatings or dust adhesion prevention coatings, etc.
- the monolayer film of the present invention since the monolayer film of the present invention has an anionic hydrophilic group, it has superior antistatic properties compared to a conventional coating having a nonionic hydrophilic group, and is useful as an antistatic material, an antistatic coating, a dust adhesion prevention coating, etc. It is.
- the monolayer film made of the hydrophilic cured product of the present invention is particularly preferably used as an antifogging material, an antifouling material, or an antistatic material.
- the water contact angle is usually 0 ° or more.
- the above-mentioned hydrophilic cured product obtained by the present invention for example, a single layer film, not only has a high surface hardness, but also has high transparency, and the obtained hydrophilic cured product, for example, a single layer film has few cracks.
- hydrophilic cured product obtained by polymerizing a mixture containing mono (meth) acrylate (I) not containing compound (IV) and polyvalent monomer (II), such as a monolayer film
- this mixture is used as a base material, etc.
- the distribution of the hydrophilic anionic group in the hydrophilic cured product for example, a monolayer film may change relatively and may not be stable.
- the movement speed of (I) is too high and excessively inclined on the surface in contact with the outside air, resulting in bleed out of mono (meth) acrylate (I) during polymerization, resulting in a hydrophilic cured product such as a monolayer film.
- the anionic hydrophilic group is dispersed non-uniformly, the film is easily broken, or the adhesion between the substrate and the hydrophilic cured product, for example, a single layer film is impaired. was there.
- the hydrophilic cured product of the present invention obtained by polymerizing a mixture containing the compound (IV), for example, a monolayer film
- the mercapto group, hydroxyl group, or amino group of the compound (IV) is typically A Michael addition reaction preferentially occurs with the (meth) acryloyl group contained in the polyvalent monomer (II).
- the generated sulfonic acid group contained in the coating material on the substrate or the like the reaction product having an acryloyl group interact with the mono (meth) acrylate (I) having an anionic hydrophilic group present in the surrounding area, and the movement speed of the mono (meth) acrylate (I) to the surface in contact with the outside air is increased.
- the coating conditions of the mixture containing the monomer composition and the solvent removal conditions for example, evaporation conditions
- aqueous cured product for example, a gradient structure uniformly dispersed throughout the monolayer film, is formed stably, and transparency is maintained even when the thickness of the resulting hydrophilic cured product (eg, monolayer film) increases. Tend to be.
- a hydrophilic cured product for example, a monolayer film
- a mixture containing the polyvalent monomer (II) not containing the compound (IV) and the mono (meth) acrylate (I) Even when the specific surface area is large (for example, when the film thickness of the monolayer film is small), the hydrophilic mono (meth) acrylate (I) that is inclined (concentrated) on the surface may be insufficient.
- phase separation between a phase mainly composed of hydrophilic mono (meth) acrylate (I) and a phase mainly composed of hydrophobic polyvalent monomer (II) occurs on the surface in contact with the outside air. , Transparency tends to be easily impaired.
- a hydrophilic cured product such as a monolayer film is prepared from a mixture containing the compound (IV) in addition to the polyvalent monomer (II) and the mono (meth) acrylate (I)
- the resulting hydrophilic sulfone is produced.
- the reactant itself having an acid group and an acryloyl group is also inclined (concentrated), so that in addition to the mono (meth) acrylate (I), a hydrophilic component is further supplemented on the surface in contact with the outside air, and the hydrophilicity is increased.
- the mono (meth) acrylate (I) and the hydrophobic polyvalent monomer (II) interact and compatibilize, so that phase separation is suppressed and transparency is easily maintained.
- cured material for example, a single layer film, from the mixture containing the polyhydric monomer (II) which does not contain mono (meth) acrylate (I), and compound (IV), to a base material etc.
- the reaction product having a sulfonic acid group and an acryloyl group that are contained in the coated product moves to the surface in contact with the outside air, but the molecular weight is generally smaller than that of mono (meth) acrylate (I) and the moving speed is slow.
- the produced reaction product having a sulfonic acid group and an acryloyl group is usually mono ( Since the interaction with the polyvalent monomer (II) is larger and the solubility is higher than that of the (meth) acrylate (I), even if it is inclined (concentrated) on the surface in contact with the outside air, Phase separation hardly occurs and transparency may be maintained.
- a hydrophilic part derived from mono (meth) acrylate (I) and a hydrophobic part derived from polyvalent monomer (II), which should normally repel with low affinity, are compound (IV) and There is a reaction product with the polyvalent monomer (II), and this reaction product has an affinity interaction not only with the mono (meth) acrylate (I) but also with the polyvalent monomer (II). It is presumed that the toughness of a cured product, for example, a single layer film is improved as compared with the conventional method, the crack becomes harder, and the wearability is further improved.
- the film thickness of the hydrophilic cured product of the present invention can be appropriately determined depending on the application, but is usually 0.05 to 500 ⁇ m, preferably 0.1 to 300 ⁇ m, more preferably The range is 0.5 to 100 ⁇ m, more preferably 1 to 30 ⁇ m, and particularly preferably 2 to 15 ⁇ m.
- a monolayer film For example, mono (meth) acrylate (I), polyvalent monomer (II), and compound (IV) are included. After the monomer composition is applied to the surface of the substrate, it can be formed by polymerization after drying as necessary.
- the base material examples include base materials made of non-base materials such as glass, silica, metal, metal oxide, polymethyl methacrylate, polycarbonate, polyethylene terephthalate, polyethylene, polypropylene, polystyrene, polyurethane resin, epoxy resin, vinyl chloride.
- base materials made of non-base materials such as glass, silica, metal, metal oxide, polymethyl methacrylate, polycarbonate, polyethylene terephthalate, polyethylene, polypropylene, polystyrene, polyurethane resin, epoxy resin, vinyl chloride.
- Substrates made of a base material such as resin, silicone resin, paper, pulp, etc., and base materials having a cured paint layer coated on the surface of the base material made of these inorganic materials or base materials, etc. Can be mentioned.
- these substrate surfaces are activated, as necessary, by corona treatment, ozone treatment, low temperature plasma treatment using oxygen gas or nitrogen gas, glow discharge treatment, chemicals, etc.
- a physical or chemical treatment such as an oxidation treatment or a flame treatment can be performed.
- primer treatment, undercoat treatment, and anchor coat treatment may be performed.
- Examples of the coating agent used in the primer treatment, undercoat treatment, and anchor coat treatment include, for example, polyester resins, polyamide resins, polyurethane resins, epoxy resins, phenol resins, (meth) acrylic resins, and polyvinyl acetate resins.
- a coating agent containing a resin, a polyolefin resin such as polyethylene and polypropylene, or a copolymer or modified resin thereof, a resin such as a cellulose resin as a main component of the vehicle can be used.
- the coating agent may be either a solvent type coating agent or an aqueous type coating agent.
- modified polyolefin coating agents ethyl vinyl alcohol coating agents, polyethyleneimine coating agents, polybutadiene coating agents, polyurethane coating agents; Polyester polyurethane emulsion coating agent, polyvinyl chloride emulsion coating agent, urethane acrylic emulsion coating agent, silicon acrylic emulsion coating agent, vinyl acetate acrylic emulsion coating agent, acrylic emulsion coating agent; Styrene-butadiene copolymer latex coating agent, acrylonitrile-butadiene copolymer latex coating agent, methyl methacrylate-butadiene copolymer latex coating agent, chloroprene latex coating agent, polybutadiene rubber rubber latex coating agent, poly An acrylic ester latex coating agent, a polyvinylidene chloride latex coating agent, a polybutadiene latex coating agent, or a coating agent comprising a carboxylic acid-modified latex or dispersion of a resin
- These coating agents can be applied by, for example, a gravure coating method, a reverse roll coating method, a knife coating method, a kiss coating method, etc. state is usually 0.05g / m 2 ⁇ 5g / m 2.
- polyurethane-based coating agents are more preferable.
- the polyurethane-based coating agent has a urethane bond in the main chain or side chain of the resin contained in the coating agent.
- a polyurethane-type coating agent is a coating agent containing the polyurethane obtained by making polyol and isocyanate compounds, such as polyester polyol, polyether polyol, or acrylic polyol, react, for example.
- polyurethane coating agents obtained by mixing polyester polyols such as condensation polyester polyols and lactone polyester polyols with isocyanate compounds such as tolylene diisocyanate, hexamethylene diisocyanate, and xylene diisocyanate are closely attached. It is preferable because of its excellent properties.
- the method of mixing the polyol compound and the isocyanate compound is not particularly limited.
- the mixing ratio is not particularly limited, but if the isocyanate compound is too small, it may cause curing failure, so that the OH group of the polyol compound and the NCO group of the isocyanate compound are in the range of 2/1 to 1/40 in terms of equivalents. Is preferred.
- the base material in the present invention may include the above-mentioned surface-treated base material surface.
- cured material of this invention in the surface of a base material in this way can be used as a laminated body containing a base material and a single layer film.
- the single-layer film is an antifogging film, an antifouling film, or an antistatic film
- a laminate in which the substrate is coated with the antifogging film, the antifouling film, or the antistatic film is obtained.
- the substrate is a film
- an adhesive layer described later can be provided on the surface on which the monolayer film of the present invention is not formed, and a release film can be further provided on the surface of the adhesive layer.
- the adhesive layer is laminated on the other side of the base film
- the laminated film having the single-layer film of the present invention is used as an antifogging film and an antifouling film, such as glass, bathroom mirrors, displays, television displays, etc. It can be easily attached to material surfaces, signboards, advertisements, information boards such as information boards, signs for railways, roads, etc., outer walls of buildings, window glass, etc.
- a well-known adhesive can be used.
- the adhesive include acrylic adhesives, rubber adhesives, vinyl ether polymer adhesives, and silicone adhesives.
- the thickness of the adhesive layer is usually in the range of 2 to 50 ⁇ m, preferably in the range of 5 to 30 ⁇ m.
- the surface of the single layer film in contact with the outside air may be covered with a coating material.
- the single layer film can be prevented from being damaged or soiled during transportation, storage, display, or the like.
- the coating material As the coating material, the above-mentioned coating material that has been in close contact with the coating film when polymerized by radiation to form the single layer film of the present invention on a substrate or the like can be used as it is as the coating material.
- Examples of the material of the film preferably used as the coating material include, for example, polyvinyl alcohol (PVA), vinyl alcohol polymers such as ethylene / vinyl alcohol copolymer, polyacrylamide, polyisopropylacrylamide, polyacrylonitrile, and polycarbonate (PC). , Polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polystyrene (PS), and biaxially oriented polypropylene (OPP).
- PVA polyvinyl alcohol
- vinyl alcohol polymers such as ethylene / vinyl alcohol copolymer
- polyacrylamide polyacrylamide
- polyisopropylacrylamide polyacrylonitrile
- PC polycarbonate
- PMMA Polymethyl methacrylate
- PET polyethylene terephthalate
- PS polystyrene
- OPP biaxially oriented polypropylene
- a cured product having various shapes, for example, a monolayer film, a molded product, or the like, can also be obtained by polymerizing the mixture containing the monomer composition in a mold having various shapes.
- the hydrophilic cured product obtained by the present invention for example, a monolayer film and a laminate including the monolayer film can be suitably used as an antifogging material, an antifouling material, an antistatic material and the like.
- hydrophilic cured product for example, a monolayer film and a laminated body is, for example, a vehicle and a vehicle material, a ship and a ship material, an aircraft and an aircraft base material, a building and a building material, a window of a vehicle, a ship, an aircraft, and a building.
- Optical articles such as materials, optical films, optical discs, glasses, contact lenses, goggles, illumination articles such as lamps and lights and their materials, cooling fins such as heat exchangers, recording printing materials such as photoresists and inkjet recording plates, cosmetic containers And its materials, reflective films, reflective materials such as reflectors, sound insulation boards installed on expressways, display materials, printing or printing plastics Mer, other primers, a flat panel, a touch panel, a sheet, a film, a coated tape, a transparent resin, and a transparent material such as glass, hydrophilic, can impart an antifogging and antifouling property. Furthermore, anti-condensation properties can be imparted or antistatic properties can be imparted.
- Time-of-flight secondary ion mass spectrometer at the layer surface 40 and the coat layer inside 50 (the point at which the film thickness is 1/2, the inner surface of the coat layer in contact with the substrate 10), which is the inside of the single layer film was used to measure the anion concentration, and the anion concentration ratio (Sa / Da) was determined from the value.
- Anion concentration ratio (Sa / Da) anion concentration at coat layer surface 40 / anion concentration at point 1/2 of coating layer 20 thickness and analyzer TOF-SIMS in Table 3 and measurement conditions : manufactured by ULVAC-PHI TRIFT2 Primary ion; 69Ga + (acceleration voltage 15kV) Measurement area: Electrostatic gun for charging correction is used for 230 ⁇ m square measurement. Analyzing apparatus and measurement conditions in Table 11 and Table 17 TOF-SIMS; TOF-SIMS5 manufactured by ION-TOF Primary ion; Bi 3 2+ (acceleration voltage 25 kV) Measurement area: 400 ⁇ m 2 Measurement uses neutralization gun for charge correction Sample preparation, etc. As shown in FIG.
- the sample is cut obliquely toward the cutting direction 30, and after the sample is precisely obliquely cut, 10
- the sample was cut into a size of about ⁇ 10 mm 2 , a mesh was applied to the measurement surface, and the sample was fixed to a sample holder and measured.
- Example 1 ⁇ Preparation of polymerizable composition>
- a composition described in a prior application (WO2007 / 064003) was prepared. That is, 1.5 g of 3-sulfopropyl acrylate potassium salt (hereinafter abbreviated as SPA-K) classified as mono (meth) acrylate (I), 0.1 g of Nyrostub S-EED (manufactured by Clariant Japan) as a stabilizer, And 25.4 g of methanol was dissolved by stirring under ultrasonic irradiation.
- SPA-K 3-sulfopropyl acrylate potassium salt
- I mono (meth) acrylate
- Nyrostub S-EED manufactured by Clariant Japan
- the obtained coating solution 1 was applied to a base material (manufactured by Takiron Co., Ltd., polycarbonate plate, length 100 mm ⁇ width 100 mm ⁇ thickness 2 mm) with a bar coater, and immediately applied to a hot air dryer at 40 to 50 ° C. It was charged for 3 minutes to evaporate the solvent, and finally passed through a UV conveyor (Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 6 m / min, integrated light quantity 900 mJ / cm 2 ). A tack-free transparent film was formed on the substrate surface.
- a base material manufactured by Takiron Co., Ltd., polycarbonate plate, length 100 mm ⁇ width 100 mm ⁇ thickness 2 mm
- a hot air dryer at 40 to 50 ° C. It was charged for 3 minutes to evaporate the solvent, and finally passed through a UV conveyor (Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 6 m / min, integrated light quantity 900
- Table 3 shows the relative ionic strength ratio (distribution of anion and cation concentration) of the cut surface of one coating film by TOF-SIMS.
- Examples 2 to 3 The test was conducted in the same manner as in Example 1 except that the amount of MPS-Na as compound (IV) was changed. The results are listed in Table 4.
- Example 4 The coating solution 1 prepared in Example 1 was coated with a base material (made by Takiron Co., Ltd., polycarbonate plate, 100 mm long ⁇ 100 mm ⁇ length) with a bar coater so that the thickness of the obtained cured film was the thickness described in Table 5 below. (100 mm wide ⁇ 2 mm thick) and dried with a hot air dryer at 40-50 ° C. for 2-3 minutes. After drying, immediately pass through a UV conveyor (Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18 m / min, (total 300 mJ / cm 2 ) ⁇ 3 times)) A transparent film was formed. The obtained transparent film was subjected to a Taber abrasion test under the following conditions, and haze was measured after the test. The results are shown in Table 5.
- a base material made by Takiron Co., Ltd., polycarbonate plate, 100 mm long ⁇ 100 mm ⁇ length
- a bar coater so that the thickness of the obtained cured
- the solution containing the obtained compound (IV) was added to 12.5 g of the polymerizable composition 1 and mixed, and left for 1 hour to obtain 25.08 g of a uniform reaction solution 2 having a solid content of 40 wt%. .
- ⁇ Preparation of coating solution> 50 wt% -Irgacure 127 (methanol solution) 0.6 g (3 wt% / solid content of reaction solution 2) was added to and mixed with 25.08 g of the obtained reaction solution 2, and coating with a solid content NV 40 wt% Solution 2 was obtained.
- the obtained coating solution 2 was applied to a PC plate (manufactured by Takiron Co., Ltd., polycarbonate plate, length 100 mm ⁇ width 100 mm ⁇ thickness 2 mm) with a bar coater # 10, and immediately applied to a 40-50 ° C. hot air dryer. Charged for 2-3 minutes to evaporate the solvent, and finally passed through UV conveyor (Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18m / min, 300mJ / cm 2 ) 3 times (Integrated light quantity 900 mJ / cm 2 ), and a coating film having a film thickness of about 5 ⁇ m was formed on the substrate surface.
- UV conveyor usion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18m / min, 300mJ / cm 2 ) 3 times (Integrated light quantity 900 mJ / cm 2 ), and a coating film having a film thickness of about 5 ⁇ m was formed on the substrate surface.
- the obtained coating film was evaluated after the surface was gently washed with running water and the adhering water was removed with an air gun for the purpose of eliminating the influence of adhering dust and the like. The results are shown in Table 7.
- Example 16 Preparation of reaction solution of compound (IV)> Each component was mixed and dissolved in accordance with the formulation shown in Table 8 below, and then allowed to stand at room temperature for 1 hour or longer to react with the compound (IV) to prepare a reaction solution 3 having a solid content of 33 wt%.
- the obtained coating solution 3 was applied to a PC plate (manufactured by Takiron Co., Ltd., polycarbonate plate, length 100 mm ⁇ width 100 mm ⁇ thickness 2 mm) with a bar coater # 14, and dried for 10 minutes with a hot air dryer at 80 ° C. did.
- a UV conveyor Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18 m / min, 300 mJ / cm 2
- a coating film having a thickness of about 6 ⁇ m was formed on the substrate surface.
- Example 17 Preparation of reaction solution of compound (IV)> Each component was mixed and dissolved in accordance with the formulation shown in Table 10 below, and then allowed to stand at room temperature for 1 hour or longer to react with the compound (IV) to prepare a reaction solution 4 having a solid content of 80 wt%.
- the obtained coating solution was applied to a PC plate (manufactured by Takiron Co., Ltd., polycarbonate plate, length 100 mm ⁇ width 100 mm ⁇ thickness 2 mm) with a bar coater # 24, and a hot air dryer at 60 to 65 ° C. for 2 minutes. Dried.
- a UV conveyor Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18 m / min, 300 mJ / cm 2
- was passed three times integrated light quantity 900 mJ / cm 2
- a film having a thickness of about 20 ⁇ m was formed on the substrate surface.
- ⁇ Preparation of coating solution> A solution containing the obtained polymerizable composition 2 and compound (IV) was mixed and dissolved so as to have a blending ratio shown in Table 14, and left at room temperature for 1 hour. 0.6 wt% of 50 wt% -Irgacure 127 (methanol solution) was added to the solid content of the obtained mixed liquid, and further mixed to obtain a uniform coating solution.
- the obtained coating solution was applied to a PC plate (manufactured by Takiron Co., Ltd., polycarbonate plate, length 100 mm ⁇ width 100 mm ⁇ thickness 2 mm) with a bar coater so that the film thickness after drying was 5 ⁇ m. It dried for 2 minutes with a 50 degreeC warm air dryer. Immediately after drying, a UV conveyor (Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18 m / min, 300 mJ / cm 2 ) was passed three times (integrated light quantity 900 mJ / cm 2 ), A coating film having a thickness of about 5 ⁇ m was formed on the substrate surface.
- Example 22 to 24 ⁇ Preparation of coating solution> A solution containing the compound (IV) described in Table 13 and 2,6,10-trihydroxy-4,8-dioxaundecane-1,11-diacrylate (hereinafter abbreviated as 80-MFA) are shown in Table 15. They were mixed and dissolved so as to achieve the blending ratio shown, and left at room temperature for 1 hour. 0.6 wt% of 50 wt% -Irgacure 127 (methanol solution) was added to the solid content of the obtained mixed liquid, and further mixed to obtain a uniform coating solution.
- 80-MFA 2,6,10-trihydroxy-4,8-dioxaundecane-1,11-diacrylate
- the obtained coating solution was applied to an easy-adhesion PET film (Toray, Lumirror 100-U34, 100 ⁇ m) with a bar coater so that the film thickness after drying was 5 ⁇ m, and then heated with a hot air dryer at 45-50 ° C. Dried for 2 minutes.
- a UV conveyor Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18 m / min, 300 mJ / cm 2
- a coating film having a thickness of about 5 ⁇ m was formed on the substrate surface.
- the obtained coating film was evaluated after washing with running water. The results are shown in Table 15.
- Example 25 Coating was carried out in the same manner as in Example 24 except that ethoxylated glycerin triacrylate (A-GLY-9E manufactured by Shin-Nakamura Chemical Co., Ltd.) was mixed and dissolved in the blending ratio shown in Table 15 instead of 80-MFA. A liquid was prepared, and coating on the substrate, formation of a coating film on the surface of the substrate, and evaluation of the coating film were performed. The results are shown in Table 15.
- ethoxylated glycerin triacrylate (A-GLY-9E manufactured by Shin-Nakamura Chemical Co., Ltd.) was mixed and dissolved in the blending ratio shown in Table 15 instead of 80-MFA.
- a liquid was prepared, and coating on the substrate, formation of a coating film on the surface of the substrate, and evaluation of the coating film were performed. The results are shown in Table 15.
- Example 26 The blending ratio of 2,9-dihydroxy-6-methyl-4,7-dioxadecane-1,10-diacrylate (70-PA) and pentaerythritol triacrylate (PE-3A) in place of 80-MFA shown in Table 15
- a coating solution was prepared in the same manner as in Example 24 except that the solution was mixed and dissolved, and the coating on the substrate, the formation of the coating film on the surface of the substrate, and the evaluation of the coating film were performed. The results are shown in Table 15. Further, this coating film was evaluated for antifogging property and antifouling property. The results are shown in Table 16. Further, for this coating film, the relative ionic strength ratio (anion and cation concentration distribution) of the cut surface of the coating film was measured by TOF-SIMS. The results are shown in Table 17.
- Example 4 A coating solution was prepared in the same manner as in Example 24 except that the same amount of 2-methoxyethanol was used instead of the solution containing compound (IV), and the coating on the substrate and the formation of the coating film on the substrate surface were performed. The coating film was evaluated. The results are shown in Table 15.
- Example 5 A coating solution was prepared in the same manner as in Example 25 except that the same amount of 2-methoxyethanol was used in place of the solution containing compound (IV), and the coating on the substrate and the formation of the coating film on the substrate surface were performed. The coating film was evaluated. The results are shown in Table 15.
- Example 6 A coating solution was prepared in the same manner as in Example 26 except that the same amount of 2-methoxyethanol was used instead of the solution containing compound (IV), and the coating on the substrate and the formation of the coating film on the substrate surface were performed. The coating film was evaluated. The results are shown in Table 15. Further, this coating film was evaluated for antifogging property and antifouling property. The results are shown in Table 16.
- the resulting coating solution was applied to an acrylic film (Mitsubishi Rayon, Acryprene HBL-002, 75 ⁇ m) with a bar coater so that the film thickness after drying was 5 ⁇ m, and 2 times with a warm air dryer at 45-50 ° C. Dried for minutes.
- a UV conveyor Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18 m / min, 300 mJ / cm 2
- a coating film having a thickness of about 5 ⁇ m was formed on the substrate surface.
- the obtained coating film was evaluated after washing with running water. The results are shown in Table 18.
- the obtained coating solution was applied to a PC plate (made by Takiron Co., Ltd., polycarbonate plate, length 100 mm ⁇ width 100 mm ⁇ thickness 2 mm) with a bar coater # 12 using a bar coater # 12, and warm air at 80 to 85 ° C. It was dried for 3 minutes with a dryer. Immediately after drying, a UV conveyor (Fusion UV Systems Japan Co., Ltd., electrodeless discharge lamp H bulb, conveyor speed 18 m / min, 300 mJ / cm 2 ) was passed three times (integrated light quantity 900 mJ / cm 2 ), A coating film having a thickness of about 5 ⁇ m was formed on the substrate surface. The results are shown in Table 20.
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Abstract
Description
2個以上の(メタ)アクリロイル基を有する多価単量体(II)、ならびに
メルカプト基、水酸基、およびアミノ基から選ばれる少なくとも1つの基とスルホン酸基とを有する化合物(IV)(ただし、スルホン酸基、カルボキシル基、およびリン酸基から選ばれる少なくとも1つのアニオン性親水基を有するモノ(メタ)アクリレートおよび多価単量体(II)は除く。)を含む混合物を重合して得られることを特徴とする。
上記多価メタアクリレート(II)100重量部に対する化合物(IV)の添加量は0.01~200重量部の範囲であることが好ましい。
2個以上の(メタ)アクリロイル基を有する多価単量体(II)、ならびに
メルカプト基、水酸基、およびアミノ基から選ばれる少なくとも1つの基とスルホン酸基とを有する化合物(IV)(ただし、スルホン酸基、カルボキシル基、およびリン酸基から選ばれる少なくとも1つのアニオン性親水基を有するモノ(メタ)アクリレートおよび多価単量体(II)は除く。)を含む単量体組成物と、溶解度パラメーターσが9.3(cal/cm3)以上の化合物とを含有する溶剤を含む混合物を作製する工程、
その混合物を基材表面の少なくとも一方に塗布する工程、
塗布した混合物から溶剤の少なくとも一部を除去する工程、及び
上記工程を経た混合物を重合する工程を含むことを特徴とする。
エチレングリコールジ(メタ)アクリレート、1,2-プロパンジオールジ(メタ)アクリレート、1,3-プロパンジオールジ(メタ)アクリレート、1,4-ブタンジオールジ(メタ)アクリレート、1,6-ヘキサンジオールジ(メタ)アクリレート、1,9-ノナンジオールジ(メタ)アクリレート、1,10-デカンジオールジ(メタ)アクリレート、ネオペンチルグリコールジ(メタ)アクリレート、2-メチル-1,8-オクタンジオールジ(メタ)アクリレート、2-ブチル-2-エチル-1,3-プロパンジオールジ(メタ)アクリレート、1,2-ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピルオキシ}エタン、1,2-ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピルオキシ}プロパン、1,3-ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピルオキシ}プロパン、1,4-ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピルオキシ}プタン、1,6-ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピルオキシ}ヘキサン;
ネオペンチルグリコールヒドロキシピバリン酸ジ(メタ)アクリレート;
ポリエチレングリコールジ(メタ)アクリレート、1,2-ポリプロピレングリコールジ(メタ)アクリレート、1,3-ポリプロピレングリコールジ(メタ)アクリレート、1,4-ポリブチレングリコールジ(メタ)アクリレート、ポリエチレングリコール-ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル}エーテル、1,2-ポリプロピレングリコール-ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル}エーテル;
1,2-ポリプロピレングリコール-ビス{(メタ)アクリロイル-ポリ(オキシエチレン)}エーテル;
1,3-ポリプロピレングリコールジ(メタ)アクリレート、1,4-ポリブチレングリコールジ(メタ)アクリレート、1,4-ポリブチレングリコール-ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル}エーテルなどが挙げられる。
ビス{2-(メタ)アクリロイルチオ-エチル}スルフィド、ビス{5-(メタ)アクリロイルチオ-3-チアペンチル}スルフィド;
シクロヘキサンジオールジ(メタ)アクリレート、ビス{(メタ)アクリロイルオキシ-メチル}シクロヘキサン、ビス{7-(メタ)アクリロイルオキシ-2,5-ジオキサヘプチル}シクロヘキサン、ビス{(メタ)アクリロイルオキシ-ポリ(エチレンオキシ)-メチル}シクロヘキサン;
トリシクロデカンジメタノールジ(メタ)アクリレート;
2-プロペノイックアシッド{2-(1,1,-ジメチル-2-{(1-オキソ-2-プロペニル)オキシ}エチル)-5-エチル-1,3-ジオキサン-5-イル}メチルエステル(日本化薬社製,商品名「KAYARAD R-604」);
N,N’,N”-トリス{2-(メタ)アクリロイルオキシ-エチル}イソシアヌレート;
キシリレンジオールジ(メタ)アクリレート、ビス{7-(メタ)アクリロイルオキシ-2,5-ジオキサヘプチル}ベンゼン、ビス{(メタ)アクリロイルオキシ-ポリ(エチレンオキシ)-メチル}ベンゼン;
ビスフェノールAジ(メタ)アクリレート、ビス{(メタ)アクリロイル-オキシエチル}ビスフェノールA、ビス{(メタ)アクリロイル-オキシプロピル}ビスフェノールA、ビス{(メタ)アクリロイル-ポリ(オキシエチレン)}ビスフェノールA、ビス{(メタ)アクリロイル-ポリ(オキシ-1,2-プロピレン)}ビスフェノールA、ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル}ビスフェノールA、ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピルーオキシエチル}ビスフェノールA、ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル-オキシプロピル}ビスフェノールA、ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル-ポリ(オキシエチレン)}ビスフェノールA、ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル-ポリ(オキシ-1,2-プロピレン)}ビスフェノールA;
ビス{(メタ)アクリロイル-オキシエチル-オキシプロピル}ビスフェノールA、ビス{(メタ)アクリロイルポリ(オキシエチレン)-ポリ(オキシ-1,2-プロピレン)}ビスフェノールA;
ナフタレンジオールジ(メタ)アクリレート、ビス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル-オキシ}ナフタレン;
9,9-フルオレンジオールジ(メタ)アクリレート、9,9-ビス{4-(2-(メタ)アクリロイルオキシ-エチル-オキシ)}フルオレン、9,9-ビス{3-フェニル-4-(メタ)アクリロイルオキシ-ポリ(エチレンオキシ)}フルオレン;などが挙げられる。
フェノールノボラック型エポキシ(メタ)アクリレート(新中村化学製,商品名「NKオリゴ EA-6320,EA-7120,EA-7420」);
グリセリン-1,3-ジ(メタ)アクリレート、1-アクリロイルオキシ-2-ヒドロキシ-3-メタクリロイルオキシ-プロパン、2,6,10-トリヒドロキシ-4,8-ジオキサウンデカン-1,11-ジ(メタ)アクリレート、1,2,3-トリス{3-(メタ)アクリロイルオキシ-2-ヒドロキシ-プロピル-オキシ}プロパン、1,2,3-トリス{2-(メタ)アクリロイルオキシ-エチル-オキシ}プロパン、1,2,3-トリス{2-(メタ)アクリロイルオキシ-プロピル-オキシ}プロパン、1,2,3-トリス{(メタ)アクリロイルオキシ-ポリ(エチレンオキシ)}プロパン、1,2,3-トリス{(メタ)アクリロイルオキシ-ポリ(1,2-プロピレンオキシ)}プロパン;
トリメチロールプロパントリ(メタ)アクリレート、トリメチロールプロパン-トリス{(メタ)アクリロイルオキシ-エチル-オキシ}エーテル、トリメチロールプロパン-トリス{2-(メタ)アクリロイルオキシ-プロピル-オキシ}エーテル、トリメチロールプロパン-トリス{(メタ)アクリロイルオキシ-ポリ(エチレンオキシ)}エーテル、トリメチロールプロパン-トリス{(メタ)アクリロイルオキシ-ポリ(1,2-プロピレンオキシ)}エーテル、ペンタエリスリトールトリ(メタ)アクリレート、ペンタエリスリトールテトラ(メタ)アクリレート、ペンタエリスリトール-テトラキス{(メタ)アクリロイルオキシ-エチル-オキシ}エーテル、ペンタエリスリトール-テトラキス{2-(メタ)アクリロイルオキシ-プロピル-オキシ}エーテル、ペンタエリスリトール-テトラキス{(メタ)アクリロイルオキシ-ポリ(エチレンオキシ)}エーテル、ペンタエリスリトール-テトラキス{(メタ)アクリロイルオキシ-ポリ(1,2-プロピレンオキシ)}エーテル;
ジトリメチロールプロパンテトラ(メタ)アクリレート、ジトリメチロールプロパン-テトラキス{(メタ)アクリロイルオキシ-エチル-オキシ}エーテル、ジトリメチロールプロパン-テトラキス{2-(メタ)アクリロイルオキシ-プロピル-オキシ}エーテル、ジトリメチロールプロパン-テトラキス{(メタ)アクリロイルオキシ-ポリ(エチレンオキシ)}エーテル、ジトリメチロールプロパン-テトラキス{(メタ)アクリロイルオキシ-ポリ(1,2-プロピレンオキシ)}エーテル、ジペンタエリスリトールペンタ(メタ)アクリレート、ジペンタエリスリトールヘキサ(メタ)アクリレート、ジペンタエリスリトール-ヘキサ{(メタ)アクリロイルオキシ-エチル-オキシ}エーテル、ジペンタエリスリトール-ヘキサ{2-(メタ)アクリロイルオキシ-プロピル-オキシ}エーテル、ジペンタエリスリトール-ヘキサ{(メタ)アクリロイルオキシ-ポリ(エチレンオキシ)}エーテル、ジペンタエリスリトール-ヘキサ{(メタ)アクリロイルオキシ-ポリ(1,2-プロピレンオキシ)}エーテル;等が挙げられる。
2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシプロピル(メタ)アクリレート、3-ヒドロキシプロピル(メタ)アクリレート、または4-ヒドロキシブチル(メタ)アクリレートとヘキサメチレンジイソシアナートとのウレタン反応物;
2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシプロピル(メタ)アクリレート、3-ヒドロキシプロピル(メタ)アクリレート、または4-ヒドロキシブチル(メタ)アクリレートとイソホロンジイソシアナートとのウレタン反応物;
2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシプロピル(メタ)アクリレート、3-ヒドロキシプロピル(メタ)アクリレート、または4-ヒドロキシブチル(メタ)アクリレートとビス(イソシアナトメチル)ノルボルナンとのウレタン反応物;
2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシプロピル(メタ)アクリレート、3-ヒドロキシプロピル(メタ)アクリレート、または4-ヒドロキシブチル(メタ)アクリレートとノルビス(4-イソシアナトシクロヘキシル)メタンとのウレタン反応物;
2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシプロピル(メタ)アクリレート、3-ヒドロキシプロピル(メタ)アクリレート、または4-ヒドロキシブチル(メタ)アクリレートと1,3-ビス(イソシアナトメチル)シクロヘキサンとのウレタン反応物;
2-ヒドロキシエチル(メタ)アクリレート、2-ヒドロキシプロピル(メタ)アクリレート、3-ヒドロキシプロピル(メタ)アクリレート、または4-ヒドロキシブチル(メタ)アクリレートとm-キシリレンジイソシアナートとのウレタン反応物;等が挙げられる。
アミノメチルスルホン酸、2-アミノエチルスルホン酸(タウリン)、N-メチル-2-アミノエチルスルホン酸(N-メチルタウリン)、N-エチル-2-アミノエチルスルホン酸(N-エチルタウリン)、3-アミノプロピルスルホン酸、4-アミノブチルスルホン酸、6-アミノヘキシルスルホン酸、8-アミノエチルスルホン酸、10-アミノデシルスルホン酸、および2-アミノメチルスルホン酸ナトリウム、2-アミノエチルスルホン酸ナトリウム、N-メチル-2-アミノエチルスルホン酸ナトリウム、3-アミノプロピルスルホン酸ナトリウム、3-アミノプロピルスルホン酸カリウム;などが挙げられる。
などが挙げられる。
上記一般式(1)において、sは1または2、lは1または2、mは0または1を表す。なお、一般式(1)で示すモノ(メタ)アクリレートは電気的に中性である。
Xの式量は、通常50~18,000、好ましくは100~1,000、さらに好ましくは170~500の範囲である。
JはHまたはCH3を表す。
また、これらモノ(メタ)アクリレート(I)は、そのモノ(メタ)アクリレート(I)同士が反応して生成したオリゴマーの状態となったものとして、あるいはモノ(メタ)アクリレートと該オリゴマーの混合物として用いてもよい。
シクロヘキサノン、2-メチルシクロヘキサノン、アセトンなどのケトン;
蟻酸、酢酸、プロピオン酸などのカルボン酸;
酢酸メチル、エチレングリコールモノアセテート、エチレングリコールジアセテートなどのカルボン酸エステル;
エチレンカーボネート、1,2-プロピレンカーボネートなどの炭酸エステル;
ジオキサン、アニソール、アルキレングリコールジメチルエーテルなどのエーテル;
2-メトキシ-1-エタノール(メトキシエタノール)、2-エトキシ-1-エタノール(エトキシエタノール)等のアルコキシエタノール、2-メトキシ-1-プロパノール(メトキシプロパノール)等のアルコキシプロパノールなどのアルコキシアルコール;
スルホランなどの非プロトン性スルホン;
DMSO(ジメチルスルホキシド)などの非プロトン性スルホキシド;
N,N’-ジメチルホルムアミド(DMF)、N,N’-ジメチルイミダゾリジノン(DMI)、N,N’-ジメチルアセトアミド(DMAC)などのアミド;
アセトニトリル、ブチロニトリルなどのニトリル;および水、水とアルコールとの混合物等の上記化合物の混合物等の極性溶剤が挙げられる。
1)1mol当たりの蒸発潜熱
Hb=21×(273+Tb) (単位:cal/mol),Tb:沸点(℃)
2)25℃での1mol当たりの蒸発潜熱
H25=Hb×{1+0.175×(Tb-25)/100} (単位:cal/mol),Tb:沸点(℃)
3)分子間結合エネルギー E=H25-596 (単位:cal/mol)
4)溶剤1ml(cm3)当たりの分子間結合エネルギー
E1=E×D/Mw (単位:cal/cm3),D:密度(g/cm3),
MW:分子量
5)溶解パラメーター(SP値) σ=(E1)1/2 (単位:cal/cm3)
上記極性溶剤の中では、簡易計算法によって計算された溶解度パラメーター(SP値)σ(cal/cm3)が、9.3以上の溶剤が好ましく、9.5以上の溶剤がより好ましい。溶解度パラメーター(SP値)が上記値未満の溶剤を大量に含有する、モノ(メタ)アクリレート(I)、多価単量体(II)および化合物(IV)を含む上記混合物を基材等に塗布して塗膜を形成させた場合、得られる本発明の親水性硬化物、例えば単層膜の構造、具体的にはアニオン性親水基の傾斜構造(表面集中化)が不完全になり易く、親水性が低下する傾向にある。
さらに、上記化合物(IV)およびモノ(メタ)アクリレート(I)を含まず、多価単量体(II)からなる混合物を重合して得られた硬化物、例えば単層膜の場合には、上記アニオン性親水基の傾斜構造が形成されないため、親水化は困難である。
ポリエステル系ポリウレタンエマルジョンコート剤、ポリ塩化ビニルエマルジョンコート剤、ウレタンアクリルエマルジョンコート剤、シリコンアクリルエマルジョンコート剤、酢酸ビニルアクリルエマルジョンコート剤、アクリルエマルジョンコート剤;
スチレン-ブタジエン共重合体ラテックスコート剤、アクリルニトリル-ブタジエン共重合体ラテックスコート剤、メチルメタアクリレート-ブタジエン共重合体ラテックスコート剤、クロロプレンラテックスコート剤、ポリブタジェンラテックスのゴム系ラテックスコート剤、ポリアクリル酸エステルラテックスコート剤、ポリ塩化ビニリデンラテックスコート剤、ポリブタジエンラテックスコート剤、あるいはこれらラテックスコート剤に含まれる樹脂のカルボン酸変性物ラテックスもしくはディスパージョンからなるコート剤が好ましい。
<水接触角の測定>
協和界面科学社製CA-V型を用いて、室温(25℃)にて測定した。
<ヘーズの測定>
日本電色工業社製ヘーズメーターNDH2000を用いて、1サンプルについて4箇所測定し、平均値を記載した。
<耐擦傷性試験>
スチールウール#0000を用い、1Kgfの荷重をかけて10往復擦る。
傷が入らなかった場合を○、1~5本の傷がは入った場合を△、6本~無数に傷が入った場合を×とした。
<防曇性の評価>
呼気により曇らなかった場合を○、曇った場合を×とした。
<防汚性の評価>
ゼブラ(株)製の油性マーカー「マッキー極細」(黒,品番MO-120-MC-BK)でマークし、その上に水滴を垂らして30秒放置し、テッシュペーパーでふき取る。マークがふき取れた場合を○、ふき取れずに残った場合を×とした。
<密着性の評価>
碁盤目剥離試験により評価した。
<アニオンおよびカチオン濃度比の測定>
基材10表面のコート層20におけるコート層表面40とコート層内部50(深部)とのアニオン濃度比は、図1に示す試料調製の通りサンプルを切削方向30に向かって斜めに切断し、コート層表面40および単層膜の内部であるコート層内部50(膜厚1/2の地点、基材10に接するコート層の内表面)で飛行時間型2次イオン質量分析装置(TOF-SIMS)を用いてアニオン濃度を測定し、その値からアニオン濃度比(Sa/Da)を求めた。
アニオン濃度比(Sa/Da)=コート層表面40でのアニオン濃度/コート層20の膜厚1/2の地点でのアニオン濃度
表3の分析装置と測定条件
TOF-SIMS;ULVAC-PHI社製 TRIFT2
1次イオン;69Ga+ (加速電圧15kV)
測定面積;230μm角
測定には帯電補正用電子銃を使用
表11および表17の分析装置と測定条件
TOF-SIMS; ION・TOF社製 TOF-SIMS5
1次イオン; Bi3 2+ (加速電圧25kV)
測定面積; 400μm2
測定には帯電補正用中和銃を使用
試料調製等
図1に示す通りにサンプルを切削方向30に向かって斜めに切断し、サンプルに対して精密斜め切削を行った後、10×10mm2程度の大きさに切り出し、測定面にメッシュを当て、サンプルホルダーに固定し測定した。
評価は以下の計算式で行った。尚、各測定点のイオン濃度は、相対強度(トータル検出イオンに対する)を用いた。
アニオン濃度比=表面のアニオン濃度/コート層内部(膜中央部)のアニオン濃度
カチオン濃度比=表面のカチオン濃度/コート層内部(膜中央部)のカチオン濃度
<重合性組成物の調製>
先ず、先願(WO2007/064003号公報)に記載の組成物を調製した。即ち、モノ(メタ)アクリレート(I)に分類される3-スルホプロピルアクリレートカリウム塩(以下SPA-Kと略す)1.5g、安定剤としてナイロスタッブS-EED(クラリアント ジャパン社製)0.1g、およびメタノール25.4gを超音波照射下で攪拌して溶解した。次いで、多価単量体(II)に分類される新中村化学社製 製品名「A-GLY-9E」(エトキシ化グリセリントリアクリレート)20.0g、同様に多価単量体(II)に分類される新中村化学社製 製品名「A-9530」(ジペンタエリスリトールポリアクリレート)80.0gを順次加えて、混合攪拌し、固形分NV=80wt%の重合性組成物#130を127.0g得た。得られた重合性組成物#130の組成を表1に示す。
化合物(IV)である3-メルカプトプロピルスルホン酸ナトリウム(以下MPS-Naと略す)0.5g(0.5wt%/(モノ(メタ)アクリレート(I)+多価単量体(II))、反応触媒としてトリエチルアミン0.05g、および溶剤として2-メトキシエタノール9.25gおよび水0.20gを混合溶解し、均一溶液を得た。
得られた反応溶液1 137.0gに、UV重合開始剤としてイルガキュアー127(50wt%-メタノール溶解液)6.1g(3wt% as イルガキュアー127/(化合物(I)+化合物(II))、および希釈溶剤として2-メトキシエタノール67.0gを加えて混合溶解し、固形分NV=50wt%のコーティング溶液1を得た。
得られたコーティング溶液1を、バーコーターで基材(タキロン(株)製,ポリカーボネート板,縦100mm×横100mm×厚さ2mm)に塗布し、直ちに40~50℃の温風乾燥機に2~3分間装入して溶剤を蒸発させ、最後にUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度6m/分,積算光量900mJ/cm2)を通過させて、基材表面にタックフリーな透明膜を形成した。
化合物(IV)であるMPS-Naを添加せずに実施例1と同様に試験した。
化合物(IV)であるMPS-Naの添加量を変更して実施例1と同様に試験した。結果を表4に掲載する。
得られる硬化膜の膜厚が下記表5の記載の厚みとなるように、実施例1で作製されたコーティング溶液1を、バーコーターで基材(タキロン(株)製,ポリカーボネート板,縦100mm×横100mm×厚さ2mm)に塗布し、40-50℃の温風乾燥機で2-3分間乾燥した。乾燥後、直ちにUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度18m/分,(積算300mJ/cm2)×3回))を通過させて、基材表面に透明膜を形成した。得られた透明膜に下記条件でテーバー磨耗試験を行い、試験後にヘーズの測定を行った。結果を表5に示す。
測定機器: ロータリーアブレージョンテスター ,(株)東洋精機製作所
磨耗輪: CS-10F
荷重: 500g(250g+250g)×2
〔比較例2〕
化合物(IV)であるMPS-Naを添加せずに実施例4と同様に膜を作製し、得られた膜のテーバー磨耗試験を行い、試験後にヘーズの測定を行った。結果を表5に示す。
<重合性組成物の調製>
下記表6の配合に従って固形分80wt%の重合性組成物1を調製した。
下記表7に記載の化合物(IV)0.05g(化合物(IV)/(モノ(メタ)アクリレート(I)+多価単量体(II))=0.5wt%)に、溶剤 2-メトキシエタノール11.5gおよび水1.0g、ならびに反応触媒 トリエチルアミン0.03gを加えて混合溶解し、均一溶液 12.58gを得た。
得られた反応溶液2 25.08gに、50wt%-イルガキュアー127(メタノール溶解液)0.6g(3wt% /反応溶液2の固形分)を加えて混合し、固形分NV=40wt%のコーティング溶液2を得た。
得られたコーティング溶液2を、バーコーター#10でPC板(タキロン(株)製,ポリカーボネート板,縦100mm×横100mm×厚さ2mm)に塗布し、直ちに40~50℃の温風乾燥機に2~3分間装入して溶剤を蒸発させ、最後にUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度18m/分,300mJ/cm2)を3回通過させて(積算光量900mJ/cm2)、基材表面に膜厚約5μmのコーティング膜を形成した。
<化合物(IV)の反応溶液の調製>
下記表8の配合に従ってそれぞれの成分を混合溶解した後、室温で1時間以上放置して化合物(IV)を反応させ、固形分33wt%の反応溶液3を調製した。
反応溶液3 30.3gに、重合開始剤として50wt%-イルガキュアー127(メタノール溶液)を0.6g加えて混合溶解して、固形分33wt%のコーティング溶液3を得た。
得られたコーティング溶液3を、バーコーター#14でPC板(タキロン(株)製,ポリカーボネート板,縦100mm×横100mm×厚さ2mm)に塗布し、80℃の温風乾燥機で10分間乾燥した。乾燥後、直ちにUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度18m/分,300mJ/cm2)を3回通過させて(積算光量900mJ/cm2)、基材表面に膜厚約6μmのコーティング膜を形成させた。
<化合物(IV)の反応溶液の調製>
下記表10の配合に従ってそれぞれの成分を混合溶解した後、室温で1時間以上放置して化合物(IV)を反応させ、固形分80wt%の反応溶液4を調製した。
反応溶液4 12.5gに、重合開始剤として50wt%-イルガキュアー127(メタノール溶液)を0.6g加えて混合溶解した後、下記表11に記載の希釈溶剤4.3gを加えて混合溶解し、複数のコーティング溶液(固形分60wt%)を調製した。
得られたコーティング溶液を、バーコーター#24でPC板(タキロン(株)製,ポリカーボネート板,縦100mm×横100mm×厚さ2mm)に塗布し、60-65℃の温風乾燥機で2分間乾燥した。乾燥後、直ちにUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度18m/分,300mJ/cm2)を3回通過させて(積算光量900mJ/cm2)、基材表面に膜厚約20μmの膜を形成させた。
<重合性組成物の調製>
下記表12の配合に従って固形分80wt%の重合性組成物2を調製した。
下記表13の配合に従って化合物(IV)を含む溶液を調製した。
得られた重合性組成物2および化合物(IV)を含む溶液を、表14に示す配合比となるように混合溶解し、室温で1時間放置した。得られた混合液の固形分に対して50wt%-イルガキュアー127(メタノール溶液)を0.6wt%添加して、さらに混合し、均一なコーティング溶液を得た。
得られたコーティング溶液を、乾燥後の膜厚が5μmとなるように、バーコーターでPC板(タキロン(株)製,ポリカーボネート板,縦100mm×横100mm×厚さ2mm)に塗布し、45-50℃の温風乾燥機で2分間乾燥した。乾燥後、直ちにUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度18m/分,300mJ/cm2)を3回通過させて(積算光量900mJ/cm2)、基材表面に膜厚約5μmのコーティング膜を形成した。
〔比較例3〕
化合物(IV)であるMPS-Naを添加せずに実施例18と同様にコーティング膜を作製し、評価を行った。結果を表14に示す。
<コーティング溶液の調製>
表13に記載の化合物(IV)を含む溶液および2,6,10-トリヒドロキシ-4,8-ジオキサウンデカン-1,11-ジアクリレート(以下80-MFAと略す。)を、表15に示す配合比にとなるように混合溶解し、室温で1時間放置した。得られた混合液の固形分に対して50wt%-イルガキュアー127(メタノール溶液)を0.6wt%添加して、さらに混合し、均一なコーティング溶液を得た。
得られたコーティング溶液を、乾燥後の膜厚が5μmとなるように、バーコーターで易接着PETフィルム(東レ,ルミラー100-U34,100μm)に塗布し、45-50℃の温風乾燥機で2分間乾燥した。乾燥後、直ちにUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度18m/分,300mJ/cm2)を3回通過させて(積算光量900mJ/cm2)、基材表面に膜厚約5μmのコーティング膜を形成した。
80-MFAに代えてエトキシ化グリセリントリアクリレート(新中村化学工業(株)製 A-GLY-9E)を表15に示す配合比にとなるように混合溶解する以外は、実施例24同様にコーティング液を作製し、基材へのコート、基材表面へのコーティング膜の形成、コーティング膜の評価を行った。結果を表15に示す。
80-MFAに代えて2,9-ジヒドロキシ-6-メチル-4,7-ジオキサデカン-1,10-ジアクリレート(70-PA)およびペンタエリスリトールトリアクリレート(PE-3A)を表15に示す配合比にとなるように混合溶解する以外は、実施例24と同様にコーティング液を作製し、基材へのコート、基材表面へのコーティング膜の形成、コーティング膜の評価を行った。結果を表15に示す。また、このコーティング膜について、防曇性および防汚性の評価を行った。結果を表16に示す。さらに、このコーティング膜について、TOF-SIMSによるコーティング膜の切削面の相対イオン強度比(アニオンおよびカチオン濃度の分布)を測定した。結果を表17に示す。
化合物(IV)を含む溶液に代えて、同量の2-メトキシエタノールを用いる以外は、実施例24と同様にコーティング液を作製し、基材へのコート、基材表面へのコーティング膜の形成、コーティング膜の評価を行った。結果を表15に示す。
化合物(IV)を含む溶液に代えて、同量の2-メトキシエタノールを用いる以外は、実施例25と同様にコーティング液を作製し、基材へのコート、基材表面へのコーティング膜の形成、コーティング膜の評価を行った。結果を表15に示す。
化合物(IV)を含む溶液に代えて、同量の2-メトキシエタノールを用いる以外は、実施例26と同様にコーティング液を作製し、基材へのコート、基材表面へのコーティング膜の形成、コーティング膜の評価を行った。結果を表15に示す。また、このコーティング膜について、防曇性および防汚性の評価を行った。結果を表16に示す。
<コーティング溶液の調製>
表13に記載の化合物(IV)を含む溶液および表18に記載の化合物を、表18に示す。
配合比にとなるように混合溶解し、室温で1時間放置した。得られた混合液の固形分に対して50wt%-イルガキュアー127(メタノール溶液)を0.6wt%添加して、さらに混合し、均一なコーティング溶液を得た。
得られたコーティング溶液を、乾燥後の膜厚が5μmとなるように、バーコーターでアクリルフィルム(三菱レイヨン,アクリプレンHBL-002,75μm)に塗布し、45-50℃の温風乾燥機で2分間乾燥した。乾燥後、直ちにUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度18m/分,300mJ/cm2)を3回通過させて(積算光量900mJ/cm2)、基材表面に膜厚約5μmのコーティング膜を形成した。
化合物(IV)を含む溶液に代えて、同量の2-メトキシエタノールを用いる以外は、それぞれ実施例27、28と同様にコーティング液を作製し、基材へのコート、基材表面へのコーティング膜の形成、コーティング膜の評価を行った。結果を表18に示す。
<コーティング溶液の調製>
表19に記載された配合比に従い、表20に記載の多価単量体(II)を含む均一なコーティング溶液を調製した。
得られたコーティング溶液を、バーコーター#12でバーコーター#24でPC板(タキロン(株)製,ポリカーボネート板,縦100mm×横100mm×厚さ2mm)に塗布し、80-85℃の温風乾燥機で3分間乾燥した。乾燥後、直ちにUVコンベアー(フュージョンUVシステムズ・ジャパン(株)製,無電極放電ランプ Hバルブ,コンベアー速度18m/分,300mJ/cm2)を3回通過させて(積算光量900mJ/cm2)、基材表面に膜厚約5μmのコーティング膜を形成した。結果を表20に示す。
Claims (12)
- 2個以上の(メタ)アクリロイル基を有する多価単量体(II)、ならびに
メルカプト基、水酸基、およびアミノ基から選ばれる少なくとも1つの基とスルホン酸基とを有する化合物(IV)(ただし、スルホン酸基、カルボキシル基、およびリン酸基から選ばれる少なくとも1つのアニオン性親水基を有するモノ(メタ)アクリレートおよび多価単量体(II)は除く。)を含む混合物を重合して得られる親水性硬化物。 - 上記混合物に含まれる化合物(IV)が、下記一般式(100)、(200)、および(300)で表わされる化合物群から選択される少なくとも1つの化合物である請求項1に記載の親水性硬化物。
- 多価メタアクリレート(II)100重量部に対する化合物(IV)の添加量が0.01~200重量部の範囲である請求項1に記載の親水性硬化物。
- 上記混合物にさらに、スルホン酸基、カルボキシル基、およびリン酸基から選ばれる少なくとも1つのアニオン性親水基を有するモノ(メタ)アクリレート(I)を含む請求項1に記載の親水性硬化物。
- モノ(メタ)アクリレート(I)および多価メタアクリレート(II)の合計100重量部に対する化合物(IV)の添加量が0.01~200重量部の範囲である請求項4に記載の親水性硬化物。
- 請求項1~5のいずれか1項に記載の親水性硬化物から形成されてなる単層膜。
- 上記単層膜において、アニオン性親水基であるスルホン酸基、カルボキシル基およびリン酸基の表面濃度(Sa)と、これらアニオン性親水基の単層膜膜厚1/2地点における深部濃度(Da)の傾斜度(アニオン濃度比)(Sa/Da)が1.1以上である請求項6に記載の単層膜。
- 前記単層膜の水接触角が、30°以下である請求項6に記載の単層膜。
- 前記単層膜の水接触角が、10°以下である請求項6に記載の単層膜。
- 前記単層膜の膜厚が、0.05~500μmである請求項6に記載の単層膜。
- 2個以上の(メタ)アクリロイル基を有する多価単量体(II)、ならびに
メルカプト基、水酸基、およびアミノ基から選ばれる少なくとも1つの基とスルホン酸基とを有する化合物(IV)(ただし、スルホン酸基、カルボキシル基、およびリン酸基から選ばれる少なくとも1つのアニオン性親水基を有するモノ(メタ)アクリレートおよび多価単量体(II)は除く。)を含む単量体組成物と、溶解度パラメーターσが9.3(cal/cm3)以上の化合物とを含有する溶剤を含む混合物を作製する工程、
その混合物を基材表面の少なくとも一方に塗布する工程、
塗布した混合物から溶剤の少なくとも一部を除去する工程、及び
上記工程を経た混合物を重合する工程を含むアニオン性親水基を有する単層膜が基材の少なくとも一方の表面に形成された積層体の製造方法。 - 請求項1~5のいずれか1項に記載の親水性硬化物を得るために用いられる請求項1~5のいずれか1項に記載の2個以上の(メタ)アクリロイル基を有する多価単量体(II)、ならびにメルカプト基、水酸基、およびアミノ基から選ばれる少なくとも1つの基とスルホン酸基とを有する化合物(IV)(ただし、スルホン酸基、カルボキシル基、およびリン酸基から選ばれる少なくとも1つのアニオン性親水基を有するモノ(メタ)アクリレートおよび多価単量体(II)は除く。)を含む単量体組成物。
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013187311A1 (ja) | 2012-06-12 | 2013-12-19 | 三井化学株式会社 | 親水性の変性アクリル樹脂膜 |
WO2015087810A1 (ja) | 2013-12-11 | 2015-06-18 | 三井化学株式会社 | 親水性硬化物用組成物 |
WO2015178248A1 (ja) * | 2014-05-19 | 2015-11-26 | 三井化学株式会社 | 親水性単層膜 |
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KR101644718B1 (ko) * | 2011-07-25 | 2016-08-01 | 미쓰이 가가쿠 가부시키가이샤 | 단층막 및 이것으로 이루어지는 친수성 재료 |
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US20150126682A1 (en) * | 2012-06-12 | 2015-05-07 | Mitsui Chemicals, Inc. | Hydrophilic modified acrylic resin film |
JPWO2013187311A1 (ja) * | 2012-06-12 | 2016-02-04 | 三井化学株式会社 | 親水性の変性アクリル樹脂膜 |
KR101634485B1 (ko) | 2012-06-12 | 2016-06-28 | 미쓰이 가가쿠 가부시키가이샤 | 친수성의 변성 아크릴 수지막 |
WO2015087810A1 (ja) | 2013-12-11 | 2015-06-18 | 三井化学株式会社 | 親水性硬化物用組成物 |
JPWO2015087810A1 (ja) * | 2013-12-11 | 2017-03-16 | 三井化学株式会社 | 親水性硬化物用組成物 |
KR20160084849A (ko) | 2013-12-11 | 2016-07-14 | 미쯔이가가꾸가부시끼가이샤 | 친수성 경화물용 조성물 |
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KR20160138206A (ko) | 2014-05-19 | 2016-12-02 | 미쯔이가가꾸가부시끼가이샤 | 친수성 단층막 |
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US9976049B2 (en) | 2014-05-19 | 2018-05-22 | Mitsui Chemicals, Inc. | Hydrophilic monolayer films |
KR20170012406A (ko) | 2014-07-11 | 2017-02-02 | 미쓰이 가가쿠 가부시키가이샤 | 치과용 보철물 |
KR20170117123A (ko) | 2015-02-25 | 2017-10-20 | 미쯔이가가꾸가부시끼가이샤 | 변성 아크릴 수지 경화물, 및 그 적층체, 그리고 이것들의 제조 방법 |
US10428194B2 (en) | 2015-02-25 | 2019-10-01 | Mitsui Chemicals, Inc. | Modified acrylic resin cured product, and laminate thereof, and production methods therefor |
WO2020075712A1 (ja) * | 2018-10-09 | 2020-04-16 | Jnc株式会社 | 微多孔膜を親水性にするためのコーティング組成物および親水性の微多孔膜 |
Also Published As
Publication number | Publication date |
---|---|
JP5777621B2 (ja) | 2015-09-09 |
JPWO2012014829A1 (ja) | 2013-09-12 |
US20130156959A1 (en) | 2013-06-20 |
EP2599799A4 (en) | 2014-11-05 |
KR20130036059A (ko) | 2013-04-09 |
TWI501982B (zh) | 2015-10-01 |
EP2599799A1 (en) | 2013-06-05 |
KR101432455B1 (ko) | 2014-08-20 |
US9034464B2 (en) | 2015-05-19 |
EP2599799B1 (en) | 2016-05-25 |
TW201211073A (en) | 2012-03-16 |
CN103025766B (zh) | 2014-11-05 |
CN103025766A (zh) | 2013-04-03 |
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