WO2021241087A1 - ウレタン(メタ)アクリレート及び表面修飾されたシリカ粒子を含むハードコート層形成用硬化性組成物 - Google Patents
ウレタン(メタ)アクリレート及び表面修飾されたシリカ粒子を含むハードコート層形成用硬化性組成物 Download PDFInfo
- Publication number
- WO2021241087A1 WO2021241087A1 PCT/JP2021/016196 JP2021016196W WO2021241087A1 WO 2021241087 A1 WO2021241087 A1 WO 2021241087A1 JP 2021016196 W JP2021016196 W JP 2021016196W WO 2021241087 A1 WO2021241087 A1 WO 2021241087A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- curable composition
- film
- mass
- composition according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 0 C*(C)(N(C(N(*N=C=O)C(N1*N=C=O)=O)=O)C1=O)N=C=O Chemical compound C*(C)(N(C(N(*N=C=O)C(N1*N=C=O)=O)=O)C1=O)N=C=O 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/106—Esters of polycondensation macromers
- C08F222/1065—Esters of polycondensation macromers of alcohol terminated (poly)urethanes, e.g. urethane(meth)acrylates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
- C08F299/06—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
Definitions
- the present invention relates to a curable composition useful as a material for forming a hard coat layer applied to the surface of various display elements such as flexible displays, and is excellent in scratch resistance and stretchability, and can also impart antistatic properties.
- the present invention relates to a curable composition capable of forming a hard coat layer.
- Smartphones are now the most common form of mobile phone and have become an integral part of our daily lives.
- a cover glass is used on the surface of the smartphone to prevent the display from being scratched.
- a bendable display a so-called flexible display
- Flexible displays are expected to have a wide range of uses as displays that can be deformed such as bending and winding.
- glass is generally hard and difficult to bend back, so it cannot be applied to flexible displays. Therefore, instead of glass, it is attempted to apply a plastic film provided with a scratch-resistant hard coat layer for scratch prevention to the surface of a flexible display.
- the outermost hardcoat layer has a tensile direction. Therefore, the hardcourt layer is required to have a certain stretchability.
- a high-density crosslinked structure is formed, that is, a crosslinked structure having low molecular motion is formed to increase the surface hardness and resist external force.
- a polyfunctional acrylate-based material that is three-dimensionally crosslinked by radicals is currently most used.
- polyfunctional acrylate-based materials are usually inferior in stretchability due to their high crosslink density.
- Patent Document 1 a method of mixing a silicone or a fluorine-based surface modifier with a curable composition forming a hardcoat layer to impart slipperiness to the surface of the cured film has been known so far. ing. Further, a technique of a hard coat layer aiming at both scratch resistance and stretchability by using a polyfunctional acrylate and high hardness silica fine particles in combination has been reported (Patent Document 1).
- the surface resistance value is about 10 10 ⁇ / ⁇ .
- An object of the present invention is to provide a curable composition capable of forming a hard coat layer capable of achieving both scratch resistance and stretchability and further imparting antistatic properties.
- the first aspect of the present invention is selected from the group consisting of (a) 100 parts by mass of urethane (meth) acrylate, (b) amino group, amide group, urea group, thiourea group, thiourethane group, ureido group and thioureido group. 5 to 70 parts by mass of silica particles surface-modified with a silane coupling agent having at least one nitrogen-containing proton donating group, and (c) at the end of the molecular chain containing a poly (oxyperfluoroalkylene) group.
- Curable composition containing 0.05 part to 10 parts by mass of a perfluoropolyether having an active energy ray polymerizable group and (d) 1 part to 20 parts by mass of a polymerization initiator that generates a radical by the active energy ray. It is a thing.
- the (a) urethane (meth) acrylate is, for example, a reaction product of a (meth) acrylate compound having at least one (a1) hydroxy group and an isocyanate compound having (a2) at least two isocyanate groups.
- the (a2) isocyanate compound is, for example, at least one compound selected from the group consisting of compounds represented by the following formulas [1] to [4]. (In the above formula, R 1 , R 2 , R 3 and R 4 each represent a hydrocarbon group having 4 to 12 carbon atoms, R 0 represents a residue of a monovalent alcohol, and R 5 represents a carbon atom number 2 It represents a hydrocarbon group of to 6 and m represents 2, 3 or 4).
- the urethane (meth) acrylate (a) is composed of at least one of urethane (meth) acrylates having, for example, any one of the partial structures represented by the following formulas [1'] to [4']. .. (In the above formula, R 1 , R 2 , R 3 and R 4 each represent a hydrocarbon group having 4 to 12 carbon atoms, R 0 represents a residue of a monovalent alcohol, and R 5 represents a carbon atom number 2 It represents a hydrocarbon group of to 6 and m represents 2, 3 or 4).
- the silica particles (b) are formed by modifying the surface of silica fine particles having an average particle diameter of, for example, 40 nm to 500 nm with the silane coupling agent having a nitrogen-containing proton-donating group.
- the nitrogen-containing proton donating group is preferably at least one group selected from the group consisting of a urea group, a thiourea group, and a ureido group.
- the (c) perfluoropolyether has an active energy ray-polymerizable group at the end of the molecular chain containing the poly (oxyperfluoroalkylene) group, for example, via a urethane bond.
- the (c) perfluoropolyether has at least two active energy ray-polymerizable groups at the end of the molecular chain containing the poly (oxyperfluoroalkylene) group, for example, via a urethane bond.
- the (c) perfluoropolyether has at least two active energy ray-polymerizable groups at both ends of the molecular chain containing the poly (oxyperfluoroalkylene) group, for example, via a urethane bond.
- the poly (oxyperfluoroalkylene) group of the (c) perfluoropolyether has, for example, a repeating unit- [CF 2 O]-and / or a repeating unit- [CF 2 CF 2 O]-, and both are repeated.
- it has a unit, it is a group formed by binding these repeating units by block binding, random binding, or block binding and random binding.
- the molecular chain containing the poly (oxyperfluoroalkylene) group has, for example, a structure represented by the following formula [5].
- n is the total number of the number of repeating units- [CF 2 CF 2 O]-and the number of repeating units- [CF 2 O] -representing an integer of 5 to 30.
- the repeating unit- [CF 2 CF 2 O]-and the repeating unit- [CF 2 O] - are bound by a block bond, a random bond, or a block bond and a random bond.
- the curable composition of the present invention may further contain (e) an antistatic agent.
- the (e) antistatic agent contains, for example, metal oxide particles.
- the metal oxide particles contain oxides of at least one element selected from the group consisting of, for example, tin, zinc, and indium.
- the metal oxide particles contain, for example, tin oxide to which a dopant may be added.
- the metal oxide particles contain, for example, phosphorus-doped tin oxide and at least one of tin oxide whose surface is coated with antimony pentoxide.
- the curable composition of the present invention may further contain (f) a solvent.
- the second aspect of the present invention is a cured film obtained from the curable composition of the present invention.
- a third aspect of the present invention is a hard-coated film having a hard-coated layer on at least one surface of a film substrate, wherein the hard-coated layer is made of a cured film obtained from the curable composition of the present invention. It is a coat film.
- the hard coat layer is formed by a method including, for example, a step of applying the curable composition of the present invention on a film substrate to form a coating film, and a step of irradiating the coating film with active energy rays to cure the coating film. Being done.
- the hard coat layer is active in, for example, a step of applying the curable composition of the present invention on a film substrate to form a coating film, a step of removing the solvent from the coating film by heating, and a step of removing the solvent from the coating film. It is formed by a method including a step of irradiating with energy rays and curing.
- the hardcourt layer has a film thickness of, for example, 1 ⁇ m to 20 ⁇ m.
- a fourth aspect of the present invention includes a step of applying the curable composition of the present invention onto a film substrate to form a coating film, and a step of irradiating the coating film with active energy rays to cure the laminate. It is a manufacturing method of.
- a curable composition useful for forming a cured film and a hard coat layer that have both excellent scratch resistance and high stretchability even in a thin film having a thickness of 1 ⁇ m to 20 ⁇ m. ..
- a hard coat film provided with a cured film obtained from the curable composition or a hard coat layer made of the cured film, and there is a trade-off relationship between scratch resistance and stretching. It is possible to provide a hard-coated film having excellent properties.
- a hardcourt film with layers can be provided.
- the compound is not particularly limited as long as it has one.
- Urethane (meth) acrylate is obtained by reacting, for example, (a1) a (meth) acrylate compound having at least one hydroxy group and (a2) an isocyanate compound having at least two isocyanate groups by a known method. The reaction product to be produced.
- Examples of the (meth) acrylate compound having at least one (a1) hydroxy group include 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, and 2-hydroxybutyl acrylate.
- Examples of the isocyanate compound having at least two (a2) isocyanate groups include tetramethylene diisocyanate, pentamethylene diisocyanate, hexamethylene diisocyanate, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, and 1,3-xylene.
- Examples thereof include a biuret-type polyisocyanate, an adduct-type polyisocyanate represented by the above formula [3], and an isocyanurate-type polyisocyanate represented by the above-mentioned formula [4].
- R 1 , R 2 , R 3 and R 4 are groups obtained by removing two isocyanate groups from the above diisocyanate, and examples thereof include hexamethylene groups.
- R0 is a group obtained by removing the OH group from the monohydric alcohol that reacts with the diisocyanate to form a urethane bond.
- R 5 in the formula [3] is a dihydric alcohol, groups obtained by removing all of the OH groups from trihydric alcohol or tetravalent alcohol to form a urethane bond by reacting with the diisocyanate.
- (A) Commercially available products can be used as the urethane (meth) acrylate, for example, Art Resin (registered trademark) UN-3320HA, UN-3320HC, UN-3320HS, UN-904, UN-906S, and UN-906S. UN-901T, UN-905, UN-952 (all manufactured by Negami Kogyo Co., Ltd.), EBECRYL (registered trademark) 220, 284, 4683, 4858, 8807, 4220, 4738, same 4820, 8311, 8465, 9260, 8701, 4265, 4666, 1290, 5129, KRM8667, 8200, 8200AE, 8530, 8904, 8531BA, 8452 (above, Daisel.
- Art Resin registered trademark
- UN-3320HA UN-3320HC, UN-3320HS, UN-904, UN-906S, and UN-906S.
- UN-901T UN-905, UN-952 (all manufactured by Negami Kogyo Co.
- the (a) urethane (meth) acrylate of the curable composition of the present invention can be used alone or in combination of two or more.
- silica particles donate at least one nitrogen-containing proton selected from the group consisting of an amino group, an amide group, a urea group, a thiourea group, a thiourethane group, a ureido group and a thioureide group.
- the surface is modified with a silane coupling agent having a sex group.
- silica particles can impart stretchability by interaction with (a) urethane (meth) acrylate without impairing scratch resistance.
- the shape of the silica particles (hereinafter referred to as “unmodified silica particles”) before the surface is modified with the silane coupling agent having a nitrogen-containing proton-donating group is not particularly limited, but is, for example, abbreviated as beads. It may be spherical or irregular, such as powder, but it is preferably substantially spherical, more preferably substantially spherical particles having an aspect ratio of 1.5 or less, and most preferably. It is a spherical particle.
- the average particle size of the unmodified silica particles is in the range of 40 nm to 500 nm, for example, 40 nm to 350 nm, preferably 60 nm to 250 nm, or 70 nm to 250 nm.
- the average particle diameter (nm) is a 50% volume diameter (median diameter) obtained by measuring by a laser diffraction / scattering method based on the Mie theory.
- (B) By setting the average particle size of the silica particles within the above numerical range, a cured film having excellent scratch resistance can be obtained.
- the particle size distribution of (b) silica particles is not particularly limited, but it is preferably monodisperse fine particles having the same particle size.
- silica sol As the unmodified silica particles, for example, colloidal silica having the above average particle size can be preferably used, and as the colloidal silica, silica sol can be used.
- silica sol an aqueous silica sol produced by a known method using an aqueous sodium silicate solution as a raw material, and an organosilica sol obtained by substituting water as a dispersion medium of the aqueous silica sol with an organic solvent can be used.
- an alkoxysilane such as methyl silicate and ethyl silicate is hydrolyzed and condensed in an organic solvent such as alcohol in the presence of a catalyst (for example, an alkaline catalyst such as ammonia, an organic amine compound and sodium hydroxide).
- a catalyst for example, an alkaline catalyst such as ammonia, an organic amine compound and sodium hydroxide.
- an organosilica sol obtained by substituting the silica sol with another organic solvent can also be used.
- Examples of the organic solvent in the organosilica sol include lower alcohols such as methanol, ethanol and 2-propanol; ketones such as methyl ethyl ketone (MEK) and methyl isobutyl ketone (MIBK); N, N-dimethylformamide (DMF). , N, N-Dimethylacetamide (DMAc) and other linear amides; N-methyl-2-pyrrolidone (NMP) and other cyclic amides; ⁇ -butyrolactone and other ethers; Ethyl cellosolves, ethylene glycol and other glycols ; And acetonitrile.
- lower alcohols such as methanol, ethanol and 2-propanol
- ketones such as methyl ethyl ketone (MEK) and methyl isobutyl ketone (MIBK)
- DMAc N-Dimethylacetamide
- NMP
- Substitution of water as a dispersion medium of the aqueous silica sol with an organic solvent and replacement with another target organic solvent can be carried out by a usual method such as a distillation method or an ultrafiltration method.
- the viscosity of the organosilica sol is, for example, 0.6 mPa ⁇ s to 100 mPa ⁇ s at 20 ° C.
- Examples of commercially available products of the aqueous silica sol and the organosilica sol include Seahoster (registered trademark) KE series [manufactured by Nippon Shokubai Co., Ltd.] and Snowtex (registered trademark) series [manufactured by Nissan Chemical Industries, Ltd.].
- the silane coupling agent used for surface modification of unmodified silica particles may have one or more nitrogen-containing proton-donating groups, or may have a plurality of types of nitrogen-containing proton-donating groups. ..
- Silane particles can be prepared by mixing the above-mentioned silane coupling agent having a nitrogen-containing proton-donating group and unmodified silica particles in the presence of water or alcohol.
- the silane coupling agent having a nitrogen-containing proton donating group produces a silanol group by hydrolysis and binds to the silanol group present on the surface of unmodified silica particles by a condensation reaction. As a result, it is considered that silica particles whose surface is modified with the above-mentioned silane coupling agent having a nitrogen-containing proton-donating group are formed.
- the surface was modified with the silane coupling agent by mixing a colloidal solution (silica sol) of unmodified silica particles with the silane coupling agent having the nitrogen-containing proton-donating functional group.
- Silane particles can be prepared.
- the colloidal solution and the above silane coupling agent are mixed at room temperature or while heating. From the viewpoint of reaction efficiency, the mixing is preferably carried out while heating, and when the mixing is carried out while heating, the heating temperature can be appropriately selected depending on the type of the solvent.
- the heating temperature can be, for example, 30 ° C. or higher.
- the mixing ratio of the silane coupling agent having the nitrogen-containing proton-donating functional group and the unmodified silica particles depends on the size of the unmodified silica particles and the type of the nitrogen-containing proton-donating functional group. For example, 0.01 to 5, preferably 0.05 to 2 molecules of the silane coupling agent, more preferably 0.1 , per unit area (1 nm 2 ) of the surface of the unmodified silica particles. It is an amount of one to one.
- the surface area of the unmodified silica particles is calculated from the specific surface area measured by the nitrogen adsorption method (BET method).
- the content of (b) silica particles is 5 parts by mass to 70 parts by mass, for example, 10 parts by mass to 60 parts by mass with respect to 100 parts by mass of the (a) urethane (meth) acrylate. It is preferably 10 parts by mass to 50 parts by mass.
- (b) silica particles can be used individually by 1 type or in combination of 2 or more types.
- the preferred (c) perfluoropolyether in the curable composition of the present invention has an active energy ray-polymerizable group at the end of the molecular chain containing a poly (oxyperfluoroalkylene) group via a urethane bond.
- the end of the molecular chain of the perfluoropolyether may be any end or a part of the end of the molecular chain.
- the molecular chain of the perfluoropolyether is linear, all ends and some ends of the molecular chain are both ends and one end of the linear molecular chain, respectively.
- Examples of the linking group between the poly (oxyperfluoroalkylene) group and the urethane bond include a hydrocarbon group having an ether bond, and the hydrocarbon group has at least one hydrogen atom of a fluorine atom. It may be replaced.
- (c) perfluoropolyether serves as a surface modifier in the hardcoat layer formed from the curable composition of the present invention. Further, since (c) perfluoropolyether has excellent compatibility with (a) urethane (meth) acrylate, cloudiness is suppressed and a hard coat layer having a transparent appearance can be formed.
- the poly (oxyperfluoroalkylene) group -[CF 2 O]-(oxyperfluoromethylene group) and- [CF 2 CF 2 O]-from the viewpoint of obtaining a cured film having good scratch resistance.
- a group having both (oxyperfluoroethylene group) as a repeating unit is preferable.
- the bond of these oxyperfluoroalkylene groups may be either a block bond or a random bond.
- the total number of repeating units of the oxyperfluoroalkylene group is preferably in the range of 5 to 30, and more preferably in the range of 7 to 21.
- the molecular chain containing the poly (oxyperfluoroalkylene) group preferably has a structure represented by the following formula [5].
- N in the formula [5] represents the total number of the number of repeating units- [CF 2 CF 2 O] -and the number of repeating units- [CF 2 O]-, and an integer in the range of 5 to 30 is preferable. , 7 to 21 are more preferred.
- the ratio of the number of repeating units- [CF 2 CF 2 O]-to the number of repeating units- [CF 2 O]- is preferably in the range of 2: 1 to 1: 2, and is approximately 1. It is more preferable to set it in the range of 1.
- the binding of these repeating units may be either a block binding or a random binding.
- Examples of the active energy ray-polymerizable group include (meth) acryloyl group and vinyl group.
- the perfluoropolyether is not limited to one having one active energy ray-polymerizable group at the end of the molecular chain containing a poly (oxyperfluoroalkylene) group, and is not limited to those having two or more active energy ray-polymerizable groups. It may have.
- Examples of the terminal structure containing an active energy ray-polymerizable group include structures of the formulas [A1] to [A5] shown below, and structures in which the acryloyl group in these structures is replaced with a methacryloyl group.
- the structures of the formulas [A3], [A4] and [A5] having two or more active energy ray-polymerizable groups, and the structures in which the acryloyl group in these structures is replaced with a methacryloyl group. Is preferable.
- the content of (c) perfluoropolyether is 0.05 parts by mass to 10 parts by mass, preferably 0 parts by mass with respect to 100 parts by mass of the (a) urethane (meth) acrylate. It is 05 parts by mass to 5 parts by mass.
- the content of (c) perfluoropolyether is 0.05 parts by mass or more, sufficient scratch resistance can be imparted to the hardcoat layer, and (c) the content of perfluoropolyether is high.
- the amount is 10 parts by mass or less, it is possible to obtain a hard coat layer that is sufficiently compatible with (a) urethane (meth) acrylate and has less cloudiness.
- the (c) perfluoropolyether one type may be used alone, or two or more types may be used in combination. When two or more types are combined, one end (one end) of the molecular chain containing a poly (oxyperfluoroalkylene) group has an active energy ray-polymerizable group via a urethane bond, and the other of the molecular chain. Perfluoropolyether having a hydroxy group at one end (the other end) may be contained. Further, (c) the perfluoropolyether is a poly (oxyalkylene) between the poly (oxyperfluoroalkylene) group and the urethane bond, and between the poly (oxyperfluoroalkylene) group and the hydroxy group. The condition that it does not have a group can be added.
- the preferred (d) polymerization initiator in the curable composition of the present invention is, for example, a polymerization initiator that generates radicals by active energy rays such as electron beams, ultraviolet rays, and X-rays, particularly by irradiation with ultraviolet rays.
- Examples of the polymerization initiator include benzoins, alkylphenones, thioxanthones, azos, azides, diazos, o-quinonediazides, acylphosphine oxides, oxime esters, organic peroxides and benzophenones. , Biscmarins, bisimidazoles, titanocene, thiols, halogenated hydrocarbons, trichloromethyltriazines, and onium salts such as iodonium salt and sulfonium salt. These polymerization initiators may be used alone or in combination of two or more.
- alkylphenones As the polymerization initiator, it is preferable to use (d) alkylphenones as the polymerization initiator. By using alkylphenones, a cured film with further improved scratch resistance can be obtained.
- alkylphenones examples include 1-hydroxycyclohexylphenylketone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, and 2-hydroxy-1- (4- (2-hydroxyethoxy) phenyl)-.
- ⁇ -Hydroxyalkyl such as 2-methylpropane-1-one, 2-hydroxy-1- (4- (4- (2-hydroxy-2-methylpropionyl) benzyl) phenyl) -2-methylpropane-1-one Phenyls; 2-methyl-1- (4- (methylthio) phenyl) -2-morpholinopropane-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butane-1-one, etc.
- ⁇ -Aminoalkylphenones 2,2-dimethoxy-1,2-diphenylethane-1-one; and methylphenylglycoxylate.
- the content of (d) the polymerization initiator is 1 part by mass to 20 parts by mass, preferably 2 parts by mass to 10 parts by mass with respect to 100 parts by mass of the (a) urethane (meth) acrylate. It is a mass part.
- the curable composition of the present invention may contain (e) an antistatic agent as an optional component.
- an antistatic agent include an antistatic agent containing an organic conductive polymer such as PEDOT / PSS or metal oxide particles.
- the metal oxide particles fine particles having a primary particle diameter of 4 nm to 100 nm can be adopted.
- the primary particle size of the metal oxide particles refers to the particle size of each particle observed using a transmission electron microscope.
- the metal oxide particles can include, for example, an oxide of at least one element selected from the group consisting of tin, zinc, and indium.
- tin oxide (SnO 2 ) tin-doped indium oxide (ITO), fluorine-doped tin oxide (FTO), antimony-doped tin oxide (ATO), phosphorus-doped tin oxide (PTO), gallium-doped zinc oxide (GZO), and aluminum.
- Doped zinc oxide (AlZO), antimony-doped zinc oxide (AZO), indium-doped zinc oxide or zinc oxide-doped indium oxide (IZO), and indium gallium oxide zinc oxide (IGZO) can be mentioned, among which dopants are added. Oxides of the above elements are preferable as antistatic agents, and phosphorus-doped tin oxide (PTO) is particularly preferable.
- the metal oxide particles include surface-coated metal oxide particles having a metal oxide as a nucleus and whose surface is coated with an acidic or basic oxide.
- the nucleus for example, in addition to the above metal oxide particles such as tin oxide, titanium oxide, titanium oxide-tin oxide complex, zirconium oxide-tin oxide complex, tungsten oxide-tin oxide complex, and titanium oxide-oxidation.
- a zirconium-tin oxide complex can be mentioned.
- the acidic or basic oxide include antimony pentoxide, silicon oxide-antimony pentoxide complex, and silicon oxide-tin oxide complex.
- the content thereof is preferably 10 parts by mass to 100 parts by mass, more preferably 10 parts by mass with respect to 100 parts by mass of the (a) urethane (meth) acrylate. Parts to 90 parts by mass.
- the (e) antistatic agent may be used alone or in combination of two or more.
- the curable composition of the present invention may contain (f) a solvent as an optional component, that is, it may be in the form of a varnish.
- a solvent As the solvent, the dissolution / dispersibility of the components (a) to (d) and the optional component (e), and the curing related to the formation of the cured film (hard coat layer) described later.
- the sexual composition may be appropriately selected in consideration of workability at the time of coating, drying property before and after curing, and the like.
- aromatic hydrocarbons such as benzene, toluene, xylene, ethylbenzene and tetraline; aliphatic or alicyclic hydrocarbons such as n-hexane, n-heptane, mineral spirit and cyclohexane; Halogens such as methyl chloride, methyl bromide, methyl iodide, dichloromethane, chloroform, carbon tetrachloride, trichloroethylene, perchloroethylene, o-dichlorobenzene; ethyl acetate, propyl acetate, butyl acetate, methoxybutyl acetate, methyl cellosolve Esters or ester ethers such as acetate, ethyl cellosolve acetate, propylene glycol monomethyl ether acetate (PGMEA); diethyl ether, tetrahydrofuran (THF), 1,4
- a solvent having a high boiling point can be used for the purpose of controlling the dispersibility of the silica particles (b) at the time of drying after coating the curable composition.
- a solvent include cyclohexyl acetate, propylene glycol diacetate, 1,3-butylene glycol diacetate, 1,4-butanediol diacetate, 1,6-hexanediol diacetate, ethylene glycol monobutyl ether acetate, and the like.
- the content of the solvent (f) in the curable composition of the present invention is not particularly limited, but for example, the solid content concentration of the curable composition of the present invention is 1% by mass to 70% by mass, preferably 5% by mass to 50%. It is a concentration that becomes mass%.
- the solid content concentration also referred to as a non-volatile content concentration
- the component (a) to (d) of the curable composition of the present invention and the component (e) and the component (f) which are optional components. Represents the content of solid content (all components minus solvent components) with respect to the total mass (total mass) of the components and other additives.
- additives generally added to the curable composition of the present invention as needed, such as polymerization inhibitors, photosensitizers, leveling agents, and surfactants, as long as the effects of the present invention are not impaired.
- additives generally added to the curable composition of the present invention as needed, such as polymerization inhibitors, photosensitizers, leveling agents, and surfactants, as long as the effects of the present invention are not impaired.
- One of the agents, adhesion-imparting agents, plasticizers, ultraviolet absorbers, storage stabilizers, inorganic fillers, pigments, dyes and the like may be appropriately blended alone or in combination of two or more.
- the curable composition of the present invention can form a cured film by applying (coating) it on a substrate to form a coating film and irradiating the coating film with active energy rays to polymerize (cure) the coating film.
- the cured film is also the subject of the present invention. Further, as the hard coat layer in the hard coat film described later, one made of the above-mentioned cured film can be used.
- polyesters such as various resins (polyester, polymethacrylate, polystyrene, polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyurethane, thermoplastic polyurethane (TPU), polyolefin, polyamide, polyimide, epoxy resin , Melamine resin, triacetyl cellulose (TAC), acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile-styrene copolymer (AS), norbornene resin), metal, wood, paper, glass, slate. Can be done.
- the shape of these base materials may be a plate shape, a film shape, or a three-dimensional molded body.
- a primer layer for example, an ultraviolet absorbing layer, an infrared absorbing layer, a near infrared absorbing layer, an electromagnetic wave absorbing layer, a color correction layer, a refractive index adjusting layer, a weather resistant layer, an antireflection layer, and an antistatic layer.
- a layer, a discoloration prevention layer, a gas barrier layer, a water vapor barrier layer, a light scattering layer, an electrode layer and the like may be formed as a lower layer of the hard coat layer, and a plurality of lower layers of these hard coat layers may be laminated.
- the layer formed on the surface of the base material is not particularly limited as long as the effect of the present invention is not impaired.
- the coating method on the substrate is cast coating method, spin coating method, blade coating method, dip coating method, roll coating method, spray coating method, bar coating method, die coating method, inkjet method, printing method (intaglio printing method). , Intaglio printing method, flat plate printing method, screen printing method, etc.), etc., can be used for the roll-to-roll method, and the letterpress printing method can be used from the viewpoint of thin film coatability.
- the curable composition of the present invention is filtered in advance using a filter having a pore size of about 0.2 ⁇ m and then applied for coating.
- a solvent may be further added to the curable composition, if necessary.
- the solvent in this case, various solvents mentioned in the above-mentioned [(f) solvent] can be mentioned.
- the coating film is pre-dried by a heating means such as a hot plate or an oven as necessary to remove the solvent (solvent removal step). ..
- the conditions for heating and drying at this time are preferably, for example, 40 ° C. to 120 ° C. for about 30 seconds to 10 minutes.
- the coating film is cured by irradiating it with active energy rays such as ultraviolet rays.
- active energy rays include ultraviolet rays, electron beams and X-rays, and ultraviolet rays are particularly preferable.
- the light source used for ultraviolet irradiation for example, a sunbeam, a chemical lamp, a low pressure mercury lamp, a high pressure mercury lamp, a metal halide lamp, a xenon lamp, and a UV-LED can be used. Further, after that, the polymerization may be completed by performing post-baking, specifically by heating using a heating means such as a hot plate or an oven.
- a heating means such as a hot plate or an oven.
- the thickness of the cured film formed is usually 0.1 ⁇ m to 50 ⁇ m, preferably 0.5 ⁇ m to 20 ⁇ m after drying and curing.
- the curable composition of the present invention can be used to produce a hardcourt film having a hardcourt layer on at least one surface (surface) of the film substrate.
- the hard-coated film is also an object of the present invention, and the hard-coated film is suitably used for protecting the surface of various display elements such as a touch panel and a liquid crystal display.
- the hard coat layer in the hard coat film of the present invention is formed by a step of applying the curable composition of the present invention on a film substrate to form a coating film, a step of removing a solvent by heating if necessary, and the coating.
- the film can be formed by a method including a step of irradiating the film with active energy rays such as ultraviolet rays and curing the coating film.
- a method for producing a hard-coated film including a hard-coated layer on at least one surface of a film substrate including these steps is also an object of the present invention.
- the film base material among the base materials mentioned in the above-mentioned ⁇ cured film>, various transparent resin films that can be used for optical applications are used.
- Preferred resin films include, for example, polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and polyethylene naphthalate (PEN), polyurethanes, thermoplastic polyurethanes (TPUs), polycarbonates, polymethacrylates, polystyrenes, and polyolefins. Examples thereof include films such as polyamide, polyimide, and triacetyl cellulose (TAC).
- the film base material may be formed by laminating a plurality of layers.
- a primer layer for example, on the surface of the resin film, a primer layer, an ultraviolet absorbing layer, an infrared absorbing layer, a near infrared absorbing layer, an electromagnetic wave absorbing layer, a color correction layer, a refractive index adjusting layer, a weather resistant layer, an antireflection layer, and an antistatic layer.
- a layer different from the resin film such as a discoloration prevention layer, a gas barrier layer, a water vapor barrier layer, a light scattering layer, and an electrode layer, may be laminated as a lower layer of the hard coat layer, and the lower layer of the hard coat layer may be laminated.
- a plurality of layers may be stacked.
- the layer laminated on the surface of the resin film is not particularly limited as long as the effect of the present invention is not impaired.
- the method for applying the curable composition of the present invention onto the film substrate (coating film forming step) and the method for irradiating the coating film with active energy rays (curing step) are described in the above-mentioned ⁇ cured film>.
- Method can be used.
- the curable composition of the present invention contains a solvent (in the form of a varnish)
- a step of drying the coating film to remove the solvent can be included after the coating film forming step, if necessary.
- the method for drying the coating film (solvent removing step) described in the above-mentioned ⁇ cured film> can be used.
- the layer thickness (thickness) of the hard coat layer thus obtained is preferably set to be 1 to 100 times thicker than the average particle size of the silica particles (b).
- the film thickness of the hard coat layer is, for example, 1 ⁇ m to 20 ⁇ m, preferably 1 ⁇ m to 10 ⁇ m.
- Coating device by bar coater PM-9050MC manufactured by SMT Co., Ltd.
- Bar A-Bar OSP-22 manufactured by OSG System Products Co., Ltd., maximum wet film thickness 22 ⁇ m (equivalent to wire bar # 9)
- Coating speed 4 m / min
- Oven device Sanki Keiso Co., Ltd.
- 2-layer clean oven upper and lower type
- UV curing device CV-110QC-G manufactured by Heraeus Co., Ltd.
- Lamp Electrodeless lamp H-bulb manufactured by Heraeus Co., Ltd.
- TRIBOGEAR TYPE 30S Scanning speed: 5,000 mm / min Scanning distance: 50 mm (6)
- Tensile test equipment Shimadzu Corporation desktop precision universal testing machine Autograph AGS-10kNX Grip: 1kN Manual screw type flat grip Grip: High-strength rubber-coated grip Tooth
- Tensile speed 10 mm / min Measurement temperature: 23 ° C (7)
- Surface resistance measuring device High resistivity meter Hiresta UP MCP-HT450 manufactured by Nittoseiko Analytech Co., Ltd. (formerly Mitsubishi Chemical Analytech Co., Ltd.)
- Probe URS probe Registration table: UFL Applied voltage: 10V
- Allophanate polyisocyanate (a2-1): Hexamethylene diisocyanate allophanate modified product [Duranate (registered trademark) A201H manufactured by Asahi Kasei Chemicals Co., Ltd., isocyanate group content 17.2% by mass, bifunctional]
- Biuret polyisocyanate (a2-2): Biuret modified product of hexamethylene diisocyanate [Duranate (registered trademark) 24A-100 manufactured by Asahi Kasei Chemicals Co., Ltd
- Silica fine particles s-1 Silica fine particles with an average particle diameter of 80 nm [Organo silica sol MA-ST-ZL manufactured by Nissan Chemical Industries, Ltd. (solid content concentration 30% by mass, methanol dispersion)]
- Silica fine particles s-2 Silica fine particles with an average particle size of 200 nm [Organo silica sol MEK-ST-2040 manufactured by Nissan Chemical Industries, Ltd. (solid content concentration 40% by mass, methyl ethyl ketone dispersion)]
- Silica fine particles s-3 Silica fine particles with an average particle diameter of 40 nm [Organo silica sol MA-ST-L manufactured by Nissan Chemical Industries, Ltd.
- Silane coupling agent Si-1 Trimethoxysilane having a thiourea group [X-12-1116 manufactured by Shin-Etsu Chemical Co., Ltd.]
- Silane coupling agent Si-2 Trimethoxysilane having a urea group [X-12989MS manufactured by Shin-Etsu Chemical Co., Ltd.]
- Silane coupling agent Si-3 3-Ureidopropyltriethoxysilane [manufactured by Tokyo Chemical Industry Co., Ltd., solid content concentration 50% by mass, alcohol solution]
- Silane coupling agent Si-4 Trimethoxysilane having a hexyl group [KBM-3063 manufactured by Shin-Etsu Chemical Co., Ltd.]
- Silane coupling agent Si-5 Trimethoxysilane having an acryloyl group [KBM-5103 manufactured by Shin-Etsu Chemical Co., Ltd.]
- PFPE A perfluoropolyether having two thiourea group [X-12-1116 manufactured
- SM2 Perfluoropolyether urethane acrylate having a total of four acryloyl groups at both ends of a molecular chain containing a poly (oxyperfluoroalkylene) group [FLOUROLINK (registered trademark) AD-1700 manufactured by Solvay Specialty Polymers, non-volatile content 70 mass) %solution]
- SM3 Polydimethylsiloxane having a methacryloyl group at one end [Silaplane (registered trademark) FM-0721 manufactured by JNC Co., Ltd.] O2959: 2-Hydroxy-1- (4- (2-
- the particle size is determined by dropping a sol from a transmission electron microscope onto a copper mesh, drying it, and observing it with a transmission electron microscope (JEM-1020 manufactured by Nippon Denshi Co., Ltd.) at an acceleration voltage of 100 kV. The measured and averaged value was obtained as the average primary particle size.
- Antistatic agent e-2 Core-shell particles with a primary particle diameter of 30 nm to 40 nm whose surface is coated with tin oxide as a nucleus and whose surface is coated with antimony pentoxide.
- Examples 1 to 11, Comparative Examples 1 to 10 Each component shown in Table 1 was mixed to prepare a curable composition having a solid content concentration shown in Table 1.
- the solid content refers to a component other than the solvent and the dispersion medium.
- [part] represents [parts by mass] and [%] represents [% by mass].
- the urethane acrylate, silica fine particles, and surface modifier in Table 1 each represent a solid content.
- a bar coater was applied to these curable compositions on an A4 size PET film [Lumirror (registered trademark) U403 (also known as U40) manufactured by Toray Industries, Inc., 100 ⁇ m thick] on which both sides were easily adhered to form a primer layer.
- A4 size PET film [Lumirror (registered trademark) U403 (also known as U40) manufactured by Toray Industries, Inc., 100 ⁇ m thick] on which both sides were easily adhered to form a primer layer.
- the coating was dried in an oven at 80 ° C. for 3 minutes to remove the solvent.
- the obtained film was exposed to UV light having an exposure amount of 300 mJ / cm 2 under a nitrogen atmosphere to prepare a hard coat film having a hard coat layer (cured film).
- composition homogeneity The appearance of the curable composition 2 hours after the preparation was visually confirmed and evaluated according to the following criteria.
- the surface of the hard coat layer of the obtained hard coat film was subjected to the load shown in Table 2 with steel wool [BONSTAR (registered trademark) # 0000 (ultra-fine)] attached to a reciprocating wear tester, and the stroke was 60 mm. I rubbed it 10 times.
- the degree of scratches in the region excluding the range of 5 mm width at both ends of the stroke 60 mm was visually confirmed and evaluated according to the following criteria A, B and C. Assuming actual use as a hard coat layer, it is required to be at least B, and preferably A.
- the obtained hard coat film was cut into a rectangle having a length of 60 mm and a width of 10 mm to prepare a test piece.
- a tensile test was performed in 1% increments so as to be 5% and 6%.
- the hardcourt film after the tensile test was visually observed to confirm the maximum draw ratio in which no crack was generated in the hardcourt layer of the test piece.
- the stretchability improvement rate was calculated as the stretchability, and the value was evaluated as the stretchability according to the following criteria A, B, and C. Assuming actual use as a hard coat layer, it is required to be at least B, and preferably A. A: 125% or more B: 100% or more and less than 125% C: 100% or less
- the surface of urethane acrylate UA1 having an allophanate structure and silica fine particles having an average particle diameter of 40 nm, 80 nm or 200 nm has a nitrogen-containing proton-donating functionality.
- Silica fine particles s-4, s-5, s-6, s-7 or s-8 modified with a silane coupling agent having a group, and urethane bonds at both ends of the molecular chain as a surface modifier. It contains perfluoropolyether SM1 or SM2 having an acryloyl group.
- the hard coat film provided with the hard coat layer obtained from the curable compositions of Examples 1 to 7 is from the curable composition of Comparative Example 1 to which silica fine particles are not added. Compared with the hard coat film provided with the obtained hard coat layer, it showed better scratch resistance and stretchability.
- the curable composition of Comparative Example 2 contains urethane acrylate UA1, silica fine particles s-1 having an unmodified surface, and a surface modifier SM1.
- the hard coat film provided with the hard coat layer obtained from the curable composition of Comparative Example 2 was a silica fine particle s-4 surface-modified with a silane coupling agent having a urethane acrylate UA1, a thiourea group, a urea group or a ureido group. , S-5 or s-6, and scratch resistance as compared to a hard coat film comprising a hard coat layer obtained from the curable compositions of Examples 1 to 7 containing the surface modifiers SM1 or SM2. The result was inferior to. This result suggests that the interaction between urethane acrylate UA1 and silica fine particles s-1 is weak.
- the curable composition of Comparative Example 3 contains urethane acrylate UA1, silica fine particles s-9 surface-modified with a silane coupling agent having an acryloyl group, and a surface modifier SM1, and is curable of Comparative Example 4.
- the composition contains urethane acrylate UA1, silica fine particles s-10 surface-modified with a silane coupling agent having a hexyl group, and a surface modifier SM1.
- the hard coat film provided with the hard coat layer obtained from the curable composition of Comparative Example 3 has a strong interaction between urethane acrylate UA1 and silica fine particles s-9, and is excellent in scratch resistance but inferior in stretchability. It has been shown. Further, it was shown that the hard coat film provided with the hard coat layer obtained from the curable composition of Comparative Example 4 had a weak interaction between urethane acrylate UA1 and silica fine particles s-10, and was inferior in scratch resistance. ..
- Comparative Example 5 containing urethane acrylate UA1, silica fine particles s-4 surface-modified with a silane coupling agent having a thiourea group, and polydimethylsiloxane SM3 having a methacryloyl group at one end as a surface modifier.
- the compatibility of the surface modifier SM3 was poor, and it was not possible to obtain a good composition without any suspended matter or sediment.
- the hardcoat film provided with the hardcoat layer obtained from the curable composition of Comparative Example 6 containing no silica fine particles and a surface modifier was inferior in scratch resistance.
- the hard coat film provided with the hard coat layer obtained from the curable composition of Example 8 containing urethane acrylate UA2 having a biuret structure, silica fine particles s-4, and surface modifier SM1 did not contain silica fine particles. It showed better scratch resistance and stretchability as compared with a hard coat film having a hard coat layer obtained from a curable composition of Comparative Example 7.
- the hard coat film provided with the hard coat layer obtained from the curable composition of Example 9 containing urethane acrylate UA3 having an isocyanurate structure, silica fine particles s-4, and surface modifier SM1 does not contain silica fine particles. It showed better scratch resistance and stretchability as compared with the hard coat film provided with the hard coat layer obtained from the curable composition of Comparative Example 8.
- the hard coat film provided with the hard coat layer obtained from the curable composition of Example 10 containing urethane acrylate UA4 having an adduct structure, silica fine particles s-4, and surface modifier SM1 does not contain silica fine particles. It showed better scratch resistance and stretchability as compared with a hard coat film having a hard coat layer obtained from a curable composition of Comparative Example 9.
- the hard coat film provided with the hard coat layer obtained from the curable composition of Example 11 containing UA5, silica fine particles s-4, and the surface modifier SM1 which are commercially available as urethane acrylates does not contain silica fine particles.
- the hard coat film provided with the hard coat layer obtained from the curable composition of Comparative Example 10 which was added the same excellent scratch resistance and more excellent stretchability were exhibited. From the above results, regardless of the urethane acrylate type, by adding silica fine particles s-4 surface-modified with a silane coupling agent having a thiourea group, both scratch resistance and stretchability, which are in a trade-off relationship, are achieved. It was suggested that it is possible to improve the characteristics together.
- Examples 12 to 14 Each component shown in Table 3 was mixed to prepare a curable composition having a solid content concentration shown in Table 3.
- the solid content refers to a component other than the solvent and the dispersion medium.
- [part] represents [parts by mass] and [%] represents [% by mass].
- the urethane acrylate, silica fine particles, surface modifier and antistatic agent in Table 3 each represent a solid content.
- a bar coater was applied to these curable compositions on an A4 size PET film [Lumirror (registered trademark) U403 (also known as U40) manufactured by Toray Industries, Inc., 100 ⁇ m thick] on which both sides were easily adhered to form a primer layer.
- a coating film was dried in an oven at 60 ° C. for 3 minutes to remove the solvent.
- the obtained film is exposed to UV light having an exposure amount of 300 mJ / cm 2 under a nitrogen atmosphere to have a hard coat layer (cured film) having a layer thickness (thickness) of about 4 ⁇ m.
- a film was made.
- the surface resistance of the obtained hard-coated film was evaluated in addition to the above-mentioned evaluations of [scratch resistance] and [stretchability].
- the procedure for surface resistance evaluation is shown below. The results are shown in Table 4.
- [Surface resistance] Place the hardcoat film on the cash register table of the high resistivity meter with the surface of the hardcoat layer facing up, press the probe against the hardcoat film (hardcoat layer), measure the value 10 seconds later, and measure the average value three times.
- the surface resistivity value was set to [ ⁇ / ⁇ ].
- the hardcourt film provided with the hardcoat layer obtained from the curable compositions of Examples 12 to 14 using the antistatic agent e-1 or e-2 is excellent. It was shown to have scratch resistance and stretchability, as well as antistatic properties.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
前記(a2)イソシアネート化合物は、例えば下記式[1]乃至式[4]で表される化合物からなる群から選択される少なくとも1つの化合物である。
本発明の硬化性組成物の各成分について、以下に説明する。
[(a)ウレタン(メタ)アクリレート]
本発明の硬化性組成物において(a)ウレタン(メタ)アクリレートは、1分子中に(メタ)アクリロイル基を少なくとも2つ、及びウレタン結合[-NH-C(=O)O-]を少なくとも1つ有する化合物であれば、特に限定されない。(a)ウレタン(メタ)アクリレートは、例えば(a1)ヒドロキシ基を少なくとも1つ有する(メタ)アクリレート化合物と(a2)イソシアネート基を少なくとも2つ有するイソシアネート化合物とを、公知の方法で反応させて得られる反応生成物である。
本発明の硬化性組成物において(b)シリカ粒子は、アミノ基、アミド基、ウレア基、チオウレア基、チオウレタン基、ウレイド基及びチオウレイド基からなる群から選択される少なくとも1つの含窒素プロトン供与性基を有するシランカップリング剤で表面が修飾されている。また、(b)シリカ粒子は、(a)ウレタン(メタ)アクリレートとの相互作用により、耐擦傷性を損なうことなく延伸性を付与することができる。
本発明の硬化性組成物において好ましい(c)パーフルオロポリエーテルは、ポリ(オキシパーフルオロアルキレン)基を含む分子鎖の末端に、ウレタン結合を介して活性エネルギー線重合性基を有する。前記パーフルオロポリエーテルの分子鎖の末端は、該分子鎖の全ての末端及び一部の末端、いずれでもよい。前記パーフルオロポリエーテルの分子鎖が直鎖状である場合、前記分子鎖の全ての末端及び一部の末端は、それぞれ該直鎖状の分子鎖の両末端及び片末端である。前記ポリ(オキシパーフルオロアルキレン)基と前記ウレタン結合との間の連結基としては、例えば、エーテル結合を有する炭化水素基が挙げられ、該炭化水素基は、水素原子の少なくとも1つがフッ素原子で置換されていてもよい。本発明の硬化性組成物において(c)パーフルオロポリエーテルは、本発明の硬化性組成物から形成されるハードコート層における表面改質剤としての役割を果たす。また、(c)パーフルオロポリエーテルは、(a)ウレタン(メタ)アクリレートとの相溶性に優れるため、白濁が抑制され、透明な外観を呈するハードコート層の形成を可能とする。
本発明の硬化性組成物において好ましい(d)重合開始剤は、例えば、電子線、紫外線、X線等の活性エネルギー線により、特に紫外線照射によりラジカルを発生する重合開始剤である。
本発明の硬化性組成物は、任意成分として(e)帯電防止剤を含有してもよい。(e)帯電防止剤として、例えば、PEDOT/PSS等の有機導電性ポリマー又は金属酸化物粒子を含有する帯電防止剤が挙げられる。前記金属酸化物粒子として、その一次粒子径が4nm乃至100nmの微粒子を採用することができる。前記金属酸化物粒子はその一次粒子径を上記数値範囲内とすることにより耐擦傷性及び延伸性に影響を与えることなく帯電防止性を付与することができ、また透明性の実現につながる硬化膜を得ることができる。なお、本発明において、金属酸化物粒子における一次粒子径とは、透過型電子顕微鏡を用いて観察される個々の粒子の粒子径を指す。
本発明の硬化性組成物は、任意成分として(f)溶媒を含有してもよく、すなわちワニスの形態としてもよい。(f)溶媒としては、前記(a)成分乃至(d)成分、及び任意成分である前記(e)成分の溶解・分散性、また、後述する硬化膜(ハードコート層)の形成に係る硬化性組成物の塗工時の作業性、硬化前後の乾燥性等を考慮して適宜選択すればよい。
また、本発明の硬化性組成物には、本発明の効果を損なわない限り、必要に応じて一般的に添加される添加剤、例えば、重合禁止剤、光増感剤、レベリング剤、界面活性剤、密着性付与剤、可塑剤、紫外線吸収剤、貯蔵安定剤、無機充填剤、顔料、染料等のうち一種を単独で、或いは二種以上を組み合わせて適宜配合してもよい。
本発明の硬化性組成物は、基材上に塗布(コーティング)して塗膜を形成し、該塗膜に活性エネルギー線を照射して重合(硬化)させることにより、硬化膜を形成でき、該硬化膜も本発明の対象である。また後述するハードコートフィルムにおけるハードコート層として、上記硬化膜からなるものを用いることができる。
本発明の硬化性組成物を用いて、フィルム基材の少なくとも一方の面(表面)にハードコート層を備えるハードコートフィルムを製造することができる。該ハードコートフィルムも本発明の対象であり、該ハードコートフィルムは、例えば、タッチパネル、液晶ディスプレイ等の各種表示素子の表面を保護するために好適に用いられる。
装置:(株)エスエムテー製 PM-9050MC
バー:オーエスジーシステムプロダクツ(株)製 A-Bar OSP-22、最大ウエット膜厚22μm(ワイヤーバー#9相当)
塗布速度:4m/分
(2)オーブン
装置:三基計装(株)製 2層式クリーンオーブン(上下式)PO-250-45-D
(3)UV硬化
装置:ヘレウス(株)製 CV-110QC-G
ランプ:ヘレウス(株)製 無電極ランプH-bulb
(4)ゲル浸透クロマトグラフィー(GPC)
装置:東ソー(株)製 HLC-8220GPC
カラム:昭和電工(株)製 Shodex(登録商標)GPC K-804L、GPC K-805L
カラム温度:40℃
溶離液:テトラヒドロフラン
検出器:RI
(5)耐擦傷性試験
装置:新東科学(株)製 往復摩耗試験機 TRIBOGEAR TYPE:30S
走査速度:5,000mm/分
走査距離:50mm
(6)引張試験
装置:(株)島津製作所製 卓上形精密万能試験機オートグラフAGS-10kNX
つかみ具:1kN手動ねじ式平面形つかみ具
つかみ歯:高強度ラバーコートつかみ歯
引張速度:10mm/分
測定温度:23℃
(7)表面抵抗測定
装置:日東精工アナリテック(株)(旧(株)三菱ケミカルアナリテック)製 高抵抗率計 Hiresta UP MCP-HT450
プローブ:URSプローブ
レジテーブル:UFL
印加電圧:10V
ヒドロキシ基を1つ有する多官能アクリレート(a1-1):
ジペンタエリスリトールペンタアクリレート/ヘキサアクリレート混合物[東亞合成(株)製 アロニックス(登録商標)M-403、ペンタ体割合50%乃至60%(カタログ値)、推定水酸基価=63.3mgKOH/g(ペンタ体55%、ヘキサ体45%として算出)]
アロファネート体ポリイソシアネート(a2-1):
ヘキサメチレンジイソシアネートのアロファネート変性体[旭化成ケミカルズ(株)製 デュラネート(登録商標)A201H、イソシアネート基含有率=17.2質量%、2官能]
ビウレット体ポリイソシアネート(a2-2):
ヘキサメチレンジイソシアネートのビウレット変性体[旭化成ケミカルズ(株)製 デュラネート(登録商標)24A-100、イソシアネート基含有率=23.5質量%、3官能]
イソシアヌレート体ポリイソシアネート(a2-3):
ヘキサメチレンジイソシアネートのイソシアヌレート変性体[旭化成ケミカルズ(株)製 デュラネート(登録商標)TLA-100、イソシアネート基含有率=23.3質量%、3官能]
アダクト体ポリイソシアネート(a2-4):
ヘキサメチレンジイソシアネートのアダクト変性体[旭化成ケミカルズ(株)製 デュラネート(登録商標)P301-75E、イソシアネート基含有率=12.5質量%、3官能]
UA5:ウレタンアクリレート[根上工業(株)製 アートレジン(登録商標)UN-904(官能基数:10、重量平均分子量Mw:4900)]
シリカ微粒子s-1:
平均粒子径80nmのシリカ微粒子[日産化学(株)製 オルガノシリカゾルMA-ST-ZL(固形分濃度30質量%、メタノール分散液)]
シリカ微粒子s-2:
平均粒子径200nmのシリカ微粒子[日産化学(株)製 オルガノシリカゾルMEK-ST-2040(固形分濃度40質量%、メチルエチルケトン分散液)]
シリカ微粒子s-3:
平均粒子径40nmのシリカ微粒子[日産化学(株)製 オルガノシリカゾルMA-ST-L(固形分濃度30質量%、メタノール分散液)]
シランカップリング剤Si-1:
チオウレア基を有するトリメトキシシラン[信越化学工業(株)製 X-12-1116]
シランカップリング剤Si-2:
ウレア基を有するトリメトキシシラン[信越化学工業(株)製 X-12989MS]
シランカップリング剤Si-3:
3-ウレイドプロピルトリエトキシシラン[東京化成工業(株)製、固形分濃度50質量%、アルコール溶液]
シランカップリング剤Si-4:
ヘキシル基を有するトリメトキシシラン[信越化学工業(株)製 KBM-3063]
シランカップリング剤Si-5:
アクリロイル基を有するトリメトキシシラン[信越化学工業(株)製 KBM-5103]
PFPE:ポリ(オキシパーフルオロアルキレン)基を含む分子鎖の両末端それぞれにポリ(オキシアルキレン)基を介さずヒドロキシ基を2つ有するパーフルオロポリエーテル[ソルベイスペシャルティポリマーズ社製 Fomblin(登録商標)T4]
BEI:1,1-ビス(アクリロイルオキシメチル)エチルイソシアネート[昭和電工(株)製 カレンズ(登録商標)BEI]
DOTDD:ジネオデカン酸ジオクチル錫[日東化成(株)製 ネオスタン(登録商標)U-830]
SM2:ポリ(オキシパーフルオロアルキレン)基を含む分子鎖の両末端にアクリロイル基を合計4つ有するパーフルオロポリエーテルウレタンアクリレート[ソルベイスペシャルティポリマーズ社製 FLUOROLINK(登録商標)AD-1700、不揮発分70質量%溶液]
SM3:片末端にメタクリロイル基を有するポリジメチルシロキサン[JNC(株)製 サイラプレーン(登録商標)FM-0721]
O2959:2-ヒドロキシ-1-(4-(2-ヒドロキシエトキシ)フェニル)-2-メチルプロパン-1-オン[IGM Resins社製 OMNIRAD(登録商標)2959]
MEK:メチルエチルケトン
MeOH:メタノール
帯電防止剤e-1:
リンドープ酸化スズ20質量%イソプロピルアルコール分散ゾル[日産化学(株)製セルナックス(登録商標)CX-S204IP、一次粒子径:5nm乃至20nm、二次粒子径:10nm乃至20nm]
※ここで一次粒子径、及び二次粒子径とは、透過型電子顕微鏡観察によって測定される平均粒子径を指す。粒子径は透過型電子顕微鏡によるゾルを銅メッシュ上に滴下し乾燥させ、透過型電子顕微鏡(日本電子(株)製JEM-1020)を用いて加速電圧100kVにて観察し、100個の粒子を測定し平均化した値を平均一次粒子径として求めた。
帯電防止剤e-2:
酸化スズを核としてその表面が五酸化アンチモンで被覆された一次粒子径30nm乃至40nmのコアシェル粒子30質量%メタノール分散ゾル[日産化学(株)製セルナックス(登録商標)HX-307M1]
スクリュー管に、PFPE 1.19g(0.5mmol)、BEI 0.52g(2.0mmol)、DOTDD 0.017g(PFPE及びBEIの合計質量の0.01倍量)、及びMEK 1.67gを仕込んだ。得られた混合物を、スターラーチップを用いて室温(およそ23℃)で72時間撹拌して、目的化合物である表面改質剤SM1の50質量%MEK溶液を得た。得られたSM1のGPCによるポリスチレン換算で測定される重量平均分子量Mwは3,000、分散度(重量平均分子量Mw/数平均分子量Mn)は1.2であった。
ヒドロキシ基を1つ有する多官能アクリレート(a1-1)と各種ポリイソシアネート(a2-1)乃至(a2-4)とを反応させ、ウレタンアクリレートを製造する際の該ポリイソシアネートの仕込み量は、[(a1-1)の水酸基価/561]×(42×100/イソシアネート基含有率)×[(a1-1)量/100]×(NCO基の数/OH基の数)を用いて算出した。
スクリュー管に、OH基の数/NCO基の数=1となるよう(a1-1)10g、及びアロファネート体ポリイソシアネート(a2-1)2.76gを仕込み、さらにDOTDD 0.13g[(a1-1)及び(a2-1)の合計質量の0.01倍量]、及びMEK 3.22gを仕込んだ。得られた混合物を、スターラーチップを用いて室温(およそ23℃)でイソシアネート基を示す2260cm-1の赤外線吸収スペクトルが消失するまで撹拌した後、目的化合物であるウレタンアクリレートUA1の80質量%MEK溶液を得た。
スクリュー管に、OH基の数/NCO基の数=2/3となるよう(a1-1)10g、及びビウレット体ポリイソシアネート(a2-2)3.02gを仕込み、さらにDOTDD 0.13g[(a1-1)及び(a2-2)の合計質量の0.01倍量]、及びMEK 2.96gを仕込んだ。得られた混合物を、スターラーチップを用いて室温(およそ23℃)で3時間程度撹拌した後、残イソシアネート基を消滅させるためMeOH 0.33gを仕込み、室温(およそ23℃)でイソシアネート基を示す2260cm-1の赤外線吸収スペクトルが消失するまで撹拌した後、目的化合物であるウレタンアクリレートUA2の80質量%MEK/MeOH溶液を得た。
スクリュー管に、OH基の数/NCO基の数=2/3となるよう(a1-1)10g、及びイソシアヌレート体ポリイソシアネート(a2-3)3.05gを仕込み、さらにDOTDD 0.13g[(a1-1)及び(a2-3)の合計質量の0.01倍量]、及びMEK 2.97gを仕込んだ。得られた混合物を、スターラーチップを用いて室温(およそ23℃)で3時間程度撹拌した後、残イソシアネート基を消滅させるためMeOH 0.33gを仕込み、室温(およそ23℃)でイソシアネート基を示す2260cm-1の赤外線吸収スペクトルが消失するまで撹拌した後、目的化合物であるウレタンアクリレートUA3の80質量%MEK/MeOH溶液を得た。
スクリュー管に、OH基の数/NCO基の数=1となるよう(a1-1)10g、及びアダクト体ポリイソシアネート(a2-4)3.73gを仕込み、さらにDOTDD 0.14g[(a1-1)及び(a2-4)の合計質量の0.01倍量]、及びMEK 3.47gを仕込んだ。得られた混合物を、スターラーチップを用いて室温(およそ23℃)でイソシアネート基を示す2260cm-1の赤外線吸収スペクトルが消失するまで撹拌した後、目的化合物であるウレタンアクリレートUA4の80質量%MEK溶液を得た。
四つ口フラスコに、シリカ微粒子s-1 35g、シランカップリング剤Si-1 0.17g、及び水0.18gを仕込んだ。得られた混合物を、スターラーチップを用いて65℃で3時間撹拌して、目的化合物である、チオウレア基を有するシランカップリング剤で表面が修飾された平均粒子径80nmのシリカ微粒子s-4の30質量%MeOH分散液を得た。
四つ口フラスコに、シリカ微粒子s-1 30g、 シランカップリング剤Si-2 0.15g、及び水0.21gを仕込んだ。得られた混合物を、スターラーチップを用いて室温65℃で3時間撹拌して、目的化合物である、ウレア基を有するシランカップリング剤で表面が修飾された平均粒子径80nmのシリカ微粒子s-5の30質量%MeOH分散液を得た。
四つ口フラスコに、シリカ微粒子s-1 30g、シランカップリング剤Si-3 0.27g、及び水0.21gを仕込んだ。得られた混合物を、スターラーチップを用いて65℃で3時間撹拌して、目的化合物である、ウレイド基を有するシランカップリング剤で表面が修飾された平均粒子径80nmのシリカ微粒子s-6の30質量%MeOH分散液を得た。
四つ口フラスコに、シリカ微粒子s-2 60g、 シランカップリング剤Si-1 0.16g、及び水0.55gを仕込んだ。得られた混合物を、スターラーチップを用いて65℃で3時間撹拌して、目的化合物である、チオウレア基を有するシランカップリング剤で表面が修飾された平均粒子径200nmのシリカ微粒子s-7の40質量%MEK分散液を得た。
四つ口フラスコに、シリカ微粒子s-3 35g、シランカップリング剤Si-1 0.35g、及び水0.18gを仕込んだ。得られた混合物を、スターラーチップを用いて65℃で3時間撹拌して、目的化合物である、チオウレア基を有するシランカップリング剤で修飾された平均粒子径40nmのシリカ微粒子s-8の30質量%MeOH分散液を得た。
四つ口フラスコに、シリカ微粒子s-1 30g、シランカップリング剤Si-5 0.12g、及び水0.21gを仕込んだ。得られた混合物を、スターラーチップを用いて65℃で3時間撹拌して、目的化合物である、アクリロイル基を有するシランカップリング剤で表面が修飾された平均粒子径80nmのシリカ微粒子s-9の30質量%MeOH溶分散液を得た。
四つ口フラスコに、シリカ微粒子s-1 30g、シランカップリング剤Si-4 0.11g、及び水0.21gを仕込んだ。得られた混合物を、スターラーチップを用いて65℃で3時間撹拌して、目的化合物である、ヘキシル基を有するシランカップリング剤で表面が修飾された平均粒子径80nmのシリカ微粒子s-10の30質量%MeOH分散液を得た。
表1に記載の各成分を混合し、表1に記載の固形分濃度の硬化性組成物を調製した。なお、ここで固形分とは溶媒及び分散媒以外の成分を指す。また、表1中、[部]とは[質量部]を、[%]は[質量%]を表す。なお、表1中のウレタンアクリレート、シリカ微粒子及び表面改質剤はそれぞれ固形分を表す。
[組成物均質性]
調製後2時間経過後の硬化性組成物の外観を目視で確認し、以下の基準に従い評価した。
A:透明溶液(浮遊物及び沈降物いずれも無し)
C:浮遊物及び沈降物いずれも有り
[耐擦傷性]
得られたハードコートフィルムのハードコート層表面を、往復摩耗試験機に取り付けたスチールウール[ボンスター(BONSTAR)(登録商標)#0000(超極細)]で表2に記載の荷重を掛けてストローク60mmで10往復擦った。その後、前記ストローク60mmの両端5mm幅の範囲を除いた領域内における傷の程度を目視で確認し、以下の基準A、B及びCに従い評価した。なお、ハードコート層として実際の使用を想定した場合、少なくともBであることが求められ、Aであることが望ましい。
A:傷無し(傷0本)
B:傷発生(長さ1mm乃至9mmの傷1本乃至4本)
C:傷発生(長さ1mm乃至9mmの傷5本以上、又は長さ1cm以上の傷1本以上)
[延伸性]
得られたハードコートフィルムを長さ60mm、幅10mmの矩形に切り取り、試験片を作製した。試験片の長手方向の両端から20mmずつを掴むように万能試験機のつかみ具に取り付け、延伸率(=(つかみ具間距離の増加量)÷(つかみ具間距離)×100)が4%、5%、6%となるように1%刻みで引張試験を行った。引張試験後のハードコートフィルムを目視で観察し、試験片のハードコート層にクラックが発生しなかった最大の延伸率を確認した。その後、シリカ微粒子を除いた硬化性組成物(比較例1、比較例7、比較例8、比較例9及び比較例10)を用いて作製したハードコートフィルムの延伸率を標準(=100%)として延伸性向上率を算出し、その値を延伸性として、以下の基準A、B及びCに従い評価した。なおハードコート層として実際の使用を想定した場合、少なくともBであることが求められ、Aであることが望ましい。
A:125%以上
B:100%を超え125%未満
C:100%以下
表3に記載の各成分を混合し、表3に記載の固形分濃度の硬化性組成物を調製した。なお、ここで固形分とは溶媒及び分散媒以外の成分を指す。また、表3中、[部]とは[質量部]を、[%]は[質量%]を表す。なお、表3中のウレタンアクリレート、シリカ微粒子、表面改質剤及び帯電防止剤はそれぞれ固形分を表す。
[表面抵抗]
ハードコート層表面を上にしてハードコートフィルムを、高抵抗率計のレジテーブル上に置き、プローブをハードコートフィルム(ハードコート層)に押し付け10秒後の値を3回測定し、平均値を表面抵抗値[Ω/□]とした。
Claims (23)
- (a)ウレタン(メタ)アクリレート100質量部、
(b)アミノ基、アミド基、ウレア基、チオウレア基、チオウレタン基、ウレイド基及びチオウレイド基からなる群から選択される少なくとも1つの含窒素プロトン供与性基を有するシランカップリング剤で表面修飾されたシリカ粒子5質量部乃至70質量部、
(c)ポリ(オキシパーフルオロアルキレン)基を含む分子鎖の末端に、活性エネルギー線重合性基を有するパーフルオロポリエーテル0.05質量部乃至10質量部、及び
(d)活性エネルギー線によりラジカルを発生する重合開始剤1質量部乃至20質量部
を含む、硬化性組成物。 - 前記(a)ウレタン(メタ)アクリレートが(a1)ヒドロキシ基を少なくとも1つ有する(メタ)アクリレート化合物と(a2)イソシアネート基を少なくとも2つ有するイソシアネート化合物との反応生成物である、請求項1に記載の硬化性組成物。
- 前記(b)シリカ粒子が、40nm乃至500nmの平均粒子径を有するシリカ微粒子の表面を、前記含窒素プロトン供与性基を有するシランカップリング剤で修飾してなる、請求項1乃至請求項4のうち何れか一項に記載の硬化性組成物。
- 前記含窒素プロトン供与性基が、ウレア基、チオウレア基、及びウレイド基からなる群から選択される少なくとも1つの基である、請求項1乃至請求項5のうち何れか一項に記載の硬化性組成物。
- 前記(c)パーフルオロポリエーテルは、前記ポリ(オキシパーフルオロアルキレン)基を含む分子鎖の末端にウレタン結合を介して活性エネルギー線重合性基を有する、請求項1乃至請求項6のうち何れか一項に記載の硬化性組成物。
- 前記(c)パーフルオロポリエーテルは、前記ポリ(オキシパーフルオロアルキレン)基を含む分子鎖の末端にウレタン結合を介して活性エネルギー線重合性基を少なくとも2つ有する、請求項1乃至請求項7のうち何れか一項に記載の硬化性組成物。
- 前記(c)パーフルオロポリエーテルは、前記ポリ(オキシパーフルオロアルキレン)基を含む分子鎖の両末端それぞれにウレタン結合を介して活性エネルギー線重合性基を少なくとも2つ有する、請求項1乃至請求項7のうち何れか一項に記載の硬化性組成物。
- 前記(c)パーフルオロポリエーテルのポリ(オキシパーフルオロアルキレン)基が、繰り返し単位-[CF2O]-及び/又は繰り返し単位-[CF2CF2O]-を有し、双方の繰り返し単位を有する場合は、これら繰り返し単位をブロック結合、ランダム結合、又は、ブロック結合及びランダム結合にて結合してなる基である、請求項1乃至請求項9のうち何れか一項に記載の硬化性組成物。
- (e)帯電防止剤をさらに含む、請求項1乃至請求項11のうち何れか一項に記載の硬化性組成物。
- 前記(e)帯電防止剤は金属酸化物粒子を含む、請求項12に記載の硬化性組成物。
- 前記金属酸化物粒子は、スズ、亜鉛、及びインジウムからなる群から選ばれる少なくとも1つの元素の酸化物を含む、請求項13に記載の硬化性組成物。
- 前記金属酸化物粒子は、ドーパントが添加されていてもよい酸化スズを含む、請求項14に記載の硬化性組成物。
- 前記金属酸化物粒子は、リンドープ酸化スズ、及び表面が五酸化アンチモンで被覆された酸化スズのうち少なくとも1つを含む、請求項13乃至請求項15のうち何れか一項に記載の硬化性組成物。
- (f)溶媒をさらに含む、請求項1乃至請求項16のうち何れか一項に記載の硬化性組成物。
- 請求項1乃至請求項17のうち何れか一項に記載の硬化性組成物より得られる硬化膜。
- フィルム基材の少なくとも一方の面にハードコート層を備えるハードコートフィルムであって、該ハードコート層が請求項18に記載の硬化膜からなる、ハードコートフィルム。
- フィルム基材の少なくとも一方の面にハードコート層を備えるハードコートフィルムであって、該ハードコート層が、請求項1乃至請求項17のうち何れか一項に記載の硬化性組成物をフィルム基材上に塗布し塗膜を形成する工程と、該塗膜に活性エネルギー線を照射し硬化する工程とを含む方法により形成されてなる、ハードコートフィルム。
- フィルム基材の少なくとも一方の面にハードコート層を備えるハードコートフィルムであって、該ハードコート層が、請求項17に記載の硬化性組成物をフィルム基材上に塗布し塗膜を形成する工程と、加熱により該塗膜から前記溶媒を除去する工程と、該塗膜に活性エネルギー線を照射し硬化する工程とを含む方法により形成されてなる、ハードコートフィルム。
- 前記ハードコート層が1μm乃至20μmの膜厚を有する、請求項19乃至請求項21に記載のハードコートフィルム。
- 請求項1乃至請求項17のうち何れか一項に記載の硬化性組成物をフィルム基材上に塗布し塗膜を形成する工程と、該塗膜に活性エネルギー線を照射し硬化する工程とを含む、積層体の製造方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202180037815.5A CN115667336B (zh) | 2020-05-26 | 2021-04-21 | 包含氨基甲酸酯(甲基)丙烯酸酯及经表面改性的二氧化硅粒子的硬涂层形成用固化性组合物 |
| JP2022527593A JP7678408B2 (ja) | 2020-05-26 | 2021-04-21 | ウレタン(メタ)アクリレート及び表面修飾されたシリカ粒子を含むハードコート層形成用硬化性組成物 |
| KR1020227042872A KR20230016187A (ko) | 2020-05-26 | 2021-04-21 | 우레탄(메트)아크릴레이트 및 표면 수식된 실리카입자를 포함하는 하드코트층 형성용 경화성 조성물 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020-091202 | 2020-05-26 | ||
| JP2020091202 | 2020-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021241087A1 true WO2021241087A1 (ja) | 2021-12-02 |
Family
ID=78744442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2021/016196 Ceased WO2021241087A1 (ja) | 2020-05-26 | 2021-04-21 | ウレタン(メタ)アクリレート及び表面修飾されたシリカ粒子を含むハードコート層形成用硬化性組成物 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7678408B2 (ja) |
| KR (1) | KR20230016187A (ja) |
| CN (1) | CN115667336B (ja) |
| TW (1) | TWI896647B (ja) |
| WO (1) | WO2021241087A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171529A (zh) * | 2022-06-28 | 2022-10-11 | 厦门天马显示科技有限公司 | 复合盖板及其制备方法、包含该复合盖板的显示模组 |
| CN117645751A (zh) * | 2024-01-30 | 2024-03-05 | 河南云瀚实业有限公司 | 一种耐高温、抗铜导体氧化紫外辐照交联聚乙烯绝缘料及其制备方法 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09100111A (ja) * | 1995-10-03 | 1997-04-15 | Japan Synthetic Rubber Co Ltd | 反応性シリカ粒子、その製法および用途 |
| JP2005126453A (ja) * | 2003-10-21 | 2005-05-19 | Tdk Corp | ハードコート剤組成物及びこれを用いた光情報媒体 |
| JP2009096927A (ja) * | 2007-10-18 | 2009-05-07 | Tdk Corp | 活性エネルギー線硬化性樹脂組成物およびその積層体 |
| WO2014097825A1 (ja) * | 2012-12-18 | 2014-06-26 | 横浜ゴム株式会社 | 紫外線硬化型樹脂組成物および積層体 |
| JP2015078341A (ja) * | 2013-09-10 | 2015-04-23 | 昭和電工株式会社 | 硬化性組成物及びその硬化物並びにハードコート材及びハードコート膜 |
| WO2015060458A1 (ja) * | 2013-10-25 | 2015-04-30 | 日産化学工業株式会社 | ヒドロキシ基を有するパーフルオロポリエーテルを含む重合性組成物 |
| JP2017182080A (ja) * | 2011-10-17 | 2017-10-05 | 大日本印刷株式会社 | 光学フィルム、偏光板および画像表示装置 |
| WO2020162323A1 (ja) * | 2019-02-06 | 2020-08-13 | 日産化学株式会社 | フレキシブルハードコート用硬化性組成物 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5434568B2 (ja) | 2009-12-22 | 2014-03-05 | 東洋紡株式会社 | 成型用ハードコートフィルム |
| CN111051371B (zh) * | 2017-09-01 | 2023-03-28 | 日产化学株式会社 | 拉伸性耐擦伤性涂布用固化性组合物 |
| CN109181521B (zh) * | 2018-09-17 | 2021-08-10 | 张家港康得新光电材料有限公司 | 一种光固化涂料、紫外光固化疏水防粘接膜面及其制备方法 |
-
2021
- 2021-04-21 KR KR1020227042872A patent/KR20230016187A/ko active Pending
- 2021-04-21 WO PCT/JP2021/016196 patent/WO2021241087A1/ja not_active Ceased
- 2021-04-21 TW TW110114410A patent/TWI896647B/zh active
- 2021-04-21 CN CN202180037815.5A patent/CN115667336B/zh active Active
- 2021-04-21 JP JP2022527593A patent/JP7678408B2/ja active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09100111A (ja) * | 1995-10-03 | 1997-04-15 | Japan Synthetic Rubber Co Ltd | 反応性シリカ粒子、その製法および用途 |
| JP2005126453A (ja) * | 2003-10-21 | 2005-05-19 | Tdk Corp | ハードコート剤組成物及びこれを用いた光情報媒体 |
| JP2009096927A (ja) * | 2007-10-18 | 2009-05-07 | Tdk Corp | 活性エネルギー線硬化性樹脂組成物およびその積層体 |
| JP2017182080A (ja) * | 2011-10-17 | 2017-10-05 | 大日本印刷株式会社 | 光学フィルム、偏光板および画像表示装置 |
| WO2014097825A1 (ja) * | 2012-12-18 | 2014-06-26 | 横浜ゴム株式会社 | 紫外線硬化型樹脂組成物および積層体 |
| JP2015078341A (ja) * | 2013-09-10 | 2015-04-23 | 昭和電工株式会社 | 硬化性組成物及びその硬化物並びにハードコート材及びハードコート膜 |
| WO2015060458A1 (ja) * | 2013-10-25 | 2015-04-30 | 日産化学工業株式会社 | ヒドロキシ基を有するパーフルオロポリエーテルを含む重合性組成物 |
| WO2020162323A1 (ja) * | 2019-02-06 | 2020-08-13 | 日産化学株式会社 | フレキシブルハードコート用硬化性組成物 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115171529A (zh) * | 2022-06-28 | 2022-10-11 | 厦门天马显示科技有限公司 | 复合盖板及其制备方法、包含该复合盖板的显示模组 |
| CN115171529B (zh) * | 2022-06-28 | 2023-12-29 | 厦门天马显示科技有限公司 | 复合盖板及其制备方法、包含该复合盖板的显示模组 |
| CN117645751A (zh) * | 2024-01-30 | 2024-03-05 | 河南云瀚实业有限公司 | 一种耐高温、抗铜导体氧化紫外辐照交联聚乙烯绝缘料及其制备方法 |
| CN117645751B (zh) * | 2024-01-30 | 2024-04-16 | 河南云瀚实业有限公司 | 一种耐高温、抗铜导体氧化紫外辐照交联聚乙烯绝缘料及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202144509A (zh) | 2021-12-01 |
| KR20230016187A (ko) | 2023-02-01 |
| TWI896647B (zh) | 2025-09-11 |
| CN115667336B (zh) | 2025-09-09 |
| JP7678408B2 (ja) | 2025-05-16 |
| CN115667336A (zh) | 2023-01-31 |
| JPWO2021241087A1 (ja) | 2021-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7041405B2 (ja) | 延伸性耐擦傷性コーティング用硬化性組成物 | |
| WO2018070438A1 (ja) | 耐光性ハードコート材 | |
| JP7678408B2 (ja) | ウレタン(メタ)アクリレート及び表面修飾されたシリカ粒子を含むハードコート層形成用硬化性組成物 | |
| JP7545113B2 (ja) | フレキシブルハードコート用硬化性組成物 | |
| JP7510117B2 (ja) | 帯電防止ハードコート用硬化性組成物 | |
| KR102580704B1 (ko) | 플렉서블 하드코트용 경화성 조성물 | |
| JP7587201B2 (ja) | 特定のウレタン(メタ)アクリレートを含むハードコート層形成用硬化性組成物 | |
| JP7332988B2 (ja) | 耐光性ハードコート用硬化性組成物 | |
| WO2017221726A1 (ja) | ウレタン(メタ)アクリレート樹脂及び積層フィルム | |
| JP2017226719A (ja) | ウレタン(メタ)アクリレート樹脂及び積層フィルム | |
| JP7332989B2 (ja) | 防眩性ハードコート用硬化性組成物 | |
| JP6891410B2 (ja) | ウレタン(メタ)アクリレート樹脂及び積層フィルム | |
| JP2017226720A (ja) | ウレタン(メタ)アクリレート樹脂及び積層フィルム | |
| WO2025253960A1 (ja) | ハードコート層形成用硬化性組成物 | |
| WO2019124048A1 (ja) | ウレタン(メタ)アクリレート樹脂、硬化性樹脂組成物、硬化物及び積層フィルム |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21814443 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2022527593 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 20227042872 Country of ref document: KR Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 21814443 Country of ref document: EP Kind code of ref document: A1 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 202180037815.5 Country of ref document: CN |