WO2022071489A1 - Stratifié de résine - Google Patents

Stratifié de résine Download PDF

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Publication number
WO2022071489A1
WO2022071489A1 PCT/JP2021/036136 JP2021036136W WO2022071489A1 WO 2022071489 A1 WO2022071489 A1 WO 2022071489A1 JP 2021036136 W JP2021036136 W JP 2021036136W WO 2022071489 A1 WO2022071489 A1 WO 2022071489A1
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WIPO (PCT)
Prior art keywords
resin
mass
constituent unit
general formula
copolymer
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PCT/JP2021/036136
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English (en)
Japanese (ja)
Inventor
敦大 鴇田
健太 野中
雅登 高崎
剛 向井
Original Assignee
三菱瓦斯化学株式会社
Ｍｇｃフィルシート株式会社
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Publication of WO2022071489A1 publication Critical patent/WO2022071489A1/fr

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    • 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
    • B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
    • 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
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C08L25/14—Copolymers of styrene with unsaturated esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • 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

Definitions

  • the present invention relates to a resin laminate, and more particularly to a resin sheet laminate having a hydrophilic hard coat surface.
  • Patent Document 1 a resin sheet laminate having a hard coat layer has been used in various fields (see Patent Document 1).
  • a laminated body of resin sheets is used, for example, for interior members of automobiles and the like, housings of electronic devices, and the like.
  • the present invention provides a resin laminate that is hard to be charged and does not easily foam even under high temperature and high humidity conditions after the optical film is bonded with optical glue.
  • the present inventors have diligently studied a resin laminate containing a polycarbonate resin as a base material, which is less likely to cause foaming defects after a transparent film is bonded via an optical glue. As a result, they have found that a resin laminate having a constant water contact angle and surface resistance value of the hard coat layer in contact with the optical glue is superior, and have reached the present invention. That is, the present invention is as follows. ⁇ 1> A resin laminate containing a polycarbonate resin layer and a hard coat layer, wherein the hard coat layer is two of polyalkylene glycol and a polymerizable functional group selected from an acryloyl group or a methacryloyl group in one molecule.
  • the hard coat layer contains a cured product of an active energy ray-curable resin composition containing a photopolymerizable monomer containing more than one, and the hard coat layer has a water contact angle of 42 to 65 ° and a surface resistance value of 2.0 ⁇ 10 10 . ⁇ 8.0 ⁇ 10 A resin laminate characterized by being 14 ⁇ . ⁇ 2> The resin laminate according to ⁇ 1>, which further comprises a high hardness resin layer.
  • Resin (B1) contains a (meth) acrylic acid ester structural unit (a) represented by the following general formula (1) and an aliphatic vinyl constituent unit (b) represented by the following general formula (2).
  • Copolymer, or alloy of the copolymer and resin (B2) (In the formula, R 1 is a hydrogen atom or a methyl group; R 2 is an alkyl group having 1 to 18 carbon atoms.) (In the formula, R 3 is a hydrogen atom or a methyl group; R 4 is a cyclohexyl group which may be substituted with a hydrocarbon group having 1 to 4 carbon atoms.); Resin (B2): A copolymer (D) containing 6 to 77% by mass of a (meth) acrylic acid ester constituent unit, 15 to 71% by mass of a styrene constituent unit, and 8 to 23% by mass of an unsaturated dicarboxylic acid constituent unit.
  • Resin (B3) A copolymer containing a structural unit (c) represented by the following general formula (3) and optionally a structural unit (d) represented by the following general formula (4); Resin (B4): A copolymer containing 5 to 20% by mass of a styrene constituent unit, 60 to 90% by mass of a (meth) acrylic acid ester constituent unit, and 5 to 20% by mass of an N-substituted maleimide constituent unit.
  • a resin laminate obtained by laminating a transparent adhesive and glass on the hard coat layer is characterized in that it does not foam when subjected to a durability test for 500 hours in an environment of 85 ° C. and 85% humidity.
  • the resin laminate of the present invention includes a polycarbonate resin layer and a hard coat layer.
  • the resin laminate may further contain a high hardness resin layer.
  • each layer that can be contained in the resin laminate will be described.
  • the polycarbonate resin (a1) contained in the base material layer may be one type or two or more types.
  • the content of the polycarbonate resin (a1) in the base material layer is preferably 75 to 100% by mass, more preferably 90 to 100% by mass, and 100% by mass with respect to the total mass of the base material layer. Is particularly preferable. Impact resistance is improved by increasing the content of the polycarbonate resin.
  • the polycarbonate resin (a1) has a carbonic acid ester bond in the main chain of the molecule, that is,-[OR-OCO] -unit (where R is an aliphatic group, an aromatic group, or an aliphatic group and aroma. It may contain both group groups, and may have a linear structure or a branched structure), but is not particularly limited, but an aromatic polycarbonate resin is preferable. In particular, it is preferable to use a polycarbonate resin containing the structural unit of the following formula (a1-1). By using such a polycarbonate resin, a resin sheet having better impact resistance can be obtained.
  • an aromatic polycarbonate resin for example, Iupylon S-2000, Iupylon S-1000, Iupylon E-2000; manufactured by Mitsubishi Engineering Plastics Co., Ltd.
  • an aromatic polycarbonate resin for example, Iupylon S-2000, Iupylon S-1000, Iupylon E-2000; manufactured by Mitsubishi Engineering Plastics Co., Ltd.
  • a polycarbonate resin to which a monohydric phenol as represented by the following general formula (a1-2) is added as a terminal terminator has also been used.
  • the polycarbonate resin to which the terminal terminator is added can be used as described above.
  • R 1 represents an alkyl group having 8 to 36 carbon atoms or an alkenyl group having 8 to 36 carbon atoms
  • R 2 to R 5 each independently have a hydrogen atom, a halogen, or a substituent.
  • alkyl group having 1 to 20 carbon atoms or an aryl group having 6 to 12 carbon atoms which may be used; where the substituent is a halogen, an alkyl group having 1 to 20 carbon atoms, or an alkyl group having 6 to 12 carbon atoms. It is an aryl group.
  • the "alkyl group” and the “alkenyl group” may be linear or branched chain, and may have a substituent.
  • the monovalent phenol represented by the general formula (a1-2) is represented by the following general formula (a1-3).
  • R 1 represents an alkyl group having 8 to 36 carbon atoms or an alkenyl group having 8 to 36 carbon atoms.
  • the carbon number of R 1 in the general formula (a1-2) or the general formula (a1-3) is within a specific numerical range. Specifically, as the upper limit of the number of carbon atoms of R 1 , 36 is preferable, 22 is more preferable, and 18 is particularly preferable. Further, as the lower limit of the number of carbon atoms of R 1 , 8 is preferable, and 12 is more preferable.
  • one or both of the parahydroxybenzoic acid hexadecyl ester and the parahydroxybenzoic acid 2-hexyldecyl ester are used as terminal inhibitors. It is particularly preferable to use it as an ester.
  • the glass transition temperature, melt fluidity, moldability, drawdown resistance and the like are obtained. It is particularly preferable because an excellent polycarbonate resin can be obtained and the monohydric phenol has excellent solvent solubility during the production of the polycarbonate resin.
  • the carbon number of R1 in the general formula (a1-2) or the general formula (a1-3) is increased too much, the organic solvent solubility of the monohydric phenol (terminal terminator) tends to decrease, and the polycarbonate Productivity during resin production may decrease.
  • the carbon number of R 1 is 36 or less, the productivity is high and the economy is good in producing the polycarbonate resin.
  • the monohydric phenol is particularly excellent in organic solvent solubility, and can greatly increase the productivity in producing the polycarbonate resin and also improve the economic efficiency.
  • Examples of the polycarbonate resin using such a monovalent phenol include Iupizeta T-1380 (manufactured by Mitsubishi Gas Chemical Company, Inc.) and the like. If the carbon number of R 1 in the general formula (a1-2) or the general formula (a1-3) is too small, the glass transition point of the polycarbonate resin does not become a sufficiently low value, and the thermoformability may deteriorate. be.
  • the weight average molecular weight of the polycarbonate resin (a1) can affect the impact resistance and molding conditions of the resin sheet. That is, if the weight average molecular weight is too small, the impact resistance of the resin sheet may decrease. If the weight average molecular weight is too high, an excess heat source may be required when forming the substrate layer containing the polycarbonate resin (a1). Further, since a high temperature is required depending on the molding method selected, the polycarbonate resin (a1) is exposed to a high temperature, which may adversely affect its thermal stability.
  • the weight average molecular weight of the polycarbonate resin (a1) is preferably 15,000 to 75,000, more preferably 20,000 to 70,000, and even more preferably 20,000 to 65,000.
  • the weight average molecular weight in the present specification is a standard polystyrene-equivalent weight average molecular weight measured by gel permeation chromatography (GPC).
  • the base material layer may contain another resin in addition to the polycarbonate resin (a1).
  • a resin include polyester resin and the like.
  • the polyester resin preferably contains mainly terephthalic acid as a dicarboxylic acid component, and may contain a dicarboxylic acid component other than terephthalic acid.
  • a polyester resin (so-called "PETG") obtained by polycondensing a glycol component containing 20 to 40 mol% (total 100 mol%) of 1,4-cyclohexanedimethanol with 80 to 60 mol% of ethylene glycol as the main component. ”) Is preferable.
  • the resin in the base material layer is preferably only the polycarbonate resin (a1), but when other resins are contained, the amount thereof may be 0 to 25% by mass with respect to the total mass of the base material layer. It is preferably 0 to 10% by mass, more preferably 0 to 10% by mass.
  • the base material layer may further contain additives and the like.
  • additives those usually used in a resin sheet can be used, and as such an additive, for example, an antioxidant, an anticolorant, an anticharge agent, a mold release agent, a lubricant, a dye, etc. Examples thereof include pigments, plasticizers, flame retardants, resin modifiers, companionants, reinforcing materials such as organic fillers and inorganic fillers.
  • the method of mixing the additive and the resin is not particularly limited, and a method of compounding the entire amount, a method of dry-blending the masterbatch, a method of dry-blending the entire amount, and the like can be used.
  • the amount of the additive is preferably 0 to 10% by mass, more preferably 0 to 7% by mass, and particularly preferably 0 to 5% by mass with respect to the total mass of the base material layer.
  • the thickness of the base material layer is preferably 0.3 to 10 mm, more preferably 0.3 to 5 mm, and particularly preferably 0.3 to 3.5 mm.
  • the resin laminate of the present invention may further contain a high-hardness resin layer.
  • the high-hardness resin contained in the high-hardness resin layer is not particularly limited, but preferably contains at least one selected from the group consisting of the resins (B1) to (B6).
  • the resin (B1) has a copolymer weight including a (meth) acrylic acid ester structural unit (a) represented by the general formula (1) and an aliphatic vinyl structural unit (b) represented by the general formula (2). It is a coalescence. At this time, the resin (B1) may further have other structural units.
  • (meth) acrylic means methacrylic and / or acrylic.
  • R 1 is a hydrogen atom or a methyl group, preferably a methyl group.
  • R 2 is an alkyl group having 1 to 18 carbon atoms, preferably an alkyl group having 1 to 10 carbon atoms, and more preferably an alkyl group having 1 to 6 carbon atoms. Specific examples thereof include a methyl group, an ethyl group, a butyl group, a lauryl group, a stearyl group, a cyclohexyl group, an isobornyl group and the like. Of these, R 2 is preferably a methyl group or an ethyl group, and more preferably a methyl group.
  • the (meth) acrylic acid ester structural unit (a) represented by the general formula (1) is a (meth) acrylic acid ester structural unit, and R 1 is a methyl group.
  • the (meth) acrylic acid ester structural unit (a) represented by the general formula (1) is a methyl methacrylate structural unit.
  • the (meth) acrylic acid ester structural unit (a) represented by the general formula (1) may contain only one type or two or more types in the resin (B1).
  • R 3 is a hydrogen atom or a methyl group, preferably a hydrogen atom.
  • R4 is a cyclohexyl group which may be substituted with a hydrocarbon group having 1 to 4 carbon atoms, and is preferably a cyclohexyl group having no substituent.
  • the aliphatic vinyl structural unit (b) represented by the general formula (2) is a vinyl cyclohexane structural unit.
  • the aliphatic vinyl constituent unit (b) represented by the general formula (2) may contain only one type or two or more types in the resin (B1).
  • hydrocarbon group may be linear, branched or cyclic, or may have a substituent.
  • the other structural unit in the resin (B1) is not particularly limited, but after polymerizing the (meth) acrylic acid ester monomer and the aromatic vinyl monomer, the aromatic double bond derived from the aromatic vinyl monomer is hydrogenated.
  • Examples thereof include structural units derived from aromatic vinyl monomers containing non-hydrogenated aromatic double bonds, which are generated in the process of producing the resin (B1).
  • Specific other structural units include styrene structural units.
  • the other constituent units may contain only one type in the resin (B1) or may contain two or more types.
  • the total content of the (meth) acrylic acid ester constituent unit (a) and the aliphatic vinyl constituent unit (b) is preferably 90 to 100 mol% with respect to all the constituent units of the resin (B1), and more. It is preferably 95 to 100 mol%, and particularly preferably 98 to 100 mol%.
  • the content of the (meth) acrylic acid ester structural unit (a) represented by the general formula (1) is preferably 65 to 80 mol% with respect to all the structural units of the resin (B1), more preferably. It is 70 to 80 mol%.
  • the ratio of the (meth) acrylic acid ester structural unit (a) is 65 mol% or more, it is preferable because a resin layer having excellent adhesion to the base material layer and surface hardness can be obtained.
  • the ratio of the (meth) acrylic acid ester structural unit (a) is 80 mol% or less, warpage due to water absorption of the resin sheet is unlikely to occur, which is preferable.
  • the content of the aliphatic vinyl constituent unit (b) represented by the general formula (2) is preferably 20 to 35 mol%, more preferably 20 with respect to all the constituent units of the resin (B1). ⁇ 30 mol%.
  • the content of the aliphatic vinyl constituent unit (b) is 20 mol% or more, warpage under high temperature and high humidity can be prevented, which is preferable.
  • the content of the aliphatic vinyl constituent unit (b) is 35 mol% or less, peeling at the interface with the substrate can be prevented, which is preferable.
  • the content of the other constituent units is preferably 10 mol% or less, more preferably 5 mol% or less, and 2 mol% or less with respect to all the constituent units of the resin (B1). Is particularly preferred.
  • the "copolymer” may have any structure of a random copolymer, a block copolymer, and an alternate copolymer.
  • the weight average molecular weight of the resin (B1) is not particularly limited, but is preferably 50,000 to 400,000, more preferably 70,000 to 300,000 from the viewpoint of strength and moldability. ..
  • the glass transition point of the resin (B1) is preferably 110 to 140 ° C, more preferably 110 to 135 ° C, and particularly preferably 110 to 130 ° C.
  • the resin sheet is less likely to be deformed or cracked in a thermal environment or a moist thermal environment, which is preferable.
  • the temperature is 140 ° C. or lower, it is preferable because it is excellent in processability when it is formed by continuous heat shaping by a mirror surface roll or a shaping roll or by batch type heat shaping by a mirror surface mold or a shaping die.
  • the resin (B1) examples include Optimus 7500 and 6000 (manufactured by Mitsubishi Gas Chemical Company, Inc.).
  • the above-mentioned resin (B1) may be used alone or in combination of two or more.
  • the resin (B1) is used as the high hardness resin, it is preferable to use the Iupizeta T-1380 (manufactured by Mitsubishi Gas Chemical Company) as the polycarbonate resin (a1).
  • the structural unit represented by the general formula (1) (R 1 and R 2 are both methyl groups; methyl methacrylate) is 75 mol%, and the structural unit represented by the general formula (2) ( A resin (B1) which is a copolymer containing 25 mol% of R 3 is a hydrogen atom and R 4 is a cyclohexyl group; vinyl cyclohexane) is used, and the constituent unit of the general formula (a1-1) is used as the polycarbonate resin (a1). It is particularly preferable to use a polycarbonate resin containing the polycarbonate resin and a monovalent phenol represented by the general formula (a1-3) ( R1 has 8 to 22 carbon atoms) as a terminal terminator.
  • the method for producing the resin (B1) is not particularly limited, but after polymerizing at least one (meth) acrylic acid ester monomer and at least one aromatic vinyl monomer, an aromatic derived from the aromatic vinyl monomer is used. Those obtained by hydrogenating the double bond are suitable.
  • the aromatic vinyl monomer is not particularly limited, and examples thereof include styrene, ⁇ -methylstyrene, p-hydroxystyrene, alkoxystyrene, chlorostyrene, and derivatives thereof. Of these, the aromatic vinyl monomer is preferably styrene.
  • a known method can be used for the polymerization of the (meth) acrylic acid ester monomer and the aromatic vinyl monomer, and for example, it can be produced by a bulk polymerization method, a solution polymerization method, or the like.
  • the bulk polymerization method is carried out by continuously supplying a monomer composition containing the above-mentioned monomer and a polymerization initiator to a complete mixing tank and continuously polymerizing at 100 to 180 ° C. or the like.
  • the monomer composition may contain a chain transfer agent, if necessary.
  • the polymerization initiator is not particularly limited, but is t-amylperoxy-2-ethylhexanoate, t-butylperoxy-2-ethylhexanoate, benzoyl peroxide, 1,1-di (t-).
  • the chain transfer agent is not particularly limited, and examples thereof include ⁇ -methylstyrene dimer.
  • Examples of the solvent used in the solution polymerization method include hydrocarbon solvents such as toluene, xylene, cyclohexane and methylcyclohexane; ester solvents such as ethyl acetate and methyl isobutyrate, and ketone solvents such as acetone and methylethylketone; tetrahydrofuran, Ether-based solvents such as dioxane; alcohol-based solvents such as methanol and isopropanol can be mentioned. These solvents may be used alone or in combination of two or more.
  • hydrocarbon solvents such as toluene, xylene, cyclohexane and methylcyclohexane
  • ester solvents such as ethyl acetate and methyl isobutyrate
  • ketone solvents such as acetone and methylethylketone
  • tetrahydrofuran Ether-based solvents such as dioxane
  • the solvent used for the hydrogenation reaction to hydrogenate the aromatic double bond derived from the aromatic vinyl monomer after polymerizing the (meth) acrylic acid ester monomer and the aromatic vinyl monomer is the same as the above polymerization solvent. May be different.
  • hydrocarbon solvents such as cyclohexane and methylcyclohexane
  • ester solvents such as ethyl acetate and methyl isobutyrate
  • ketone solvents such as acetone and methyl ethyl ketone
  • ether solvents such as tetrahydrofuran and dioxane
  • alcohol solvents such as methanol and isopropanol.
  • examples include a solvent.
  • the method of hydrogenation is not particularly limited, and a known method can be used. For example, it can be carried out by a batch method or a continuous flow method at a hydrogen pressure of 3 to 30 MPa and a reaction temperature of 60 to 250 ° C. When the reaction temperature is 60 ° C. or higher, the reaction time does not take too long, which is preferable. On the other hand, when the reaction temperature is 250 ° C. or lower, side reactions such as cleavage of molecular chains and hydrogenation of ester sites do not occur or hardly occur, which is preferable.
  • Examples of the catalyst used in the hydride reaction include metals such as nickel, palladium, platinum, cobalt, ruthenium, and rhodium, or oxides, salts, or complex compounds of these metals, and carbon, alumina, silica, silica-alumina, and diatomaceous earth. Examples thereof include a solid catalyst carried on a porous carrier such as.
  • the unhydrogenation rate of the aromatic double bond contained in the structural unit derived from the aromatic vinyl monomer is preferably less than 30%, more preferably less than 10%, and less than 5%. Is even more preferable.
  • the dehydrogenation rate is less than 30%, a resin having excellent transparency can be obtained, which is preferable.
  • the structural unit of the unhydrogenated portion can be another structural unit in the resin (B1).
  • the resin (B2) is a copolymer containing 6 to 77% by mass of a (meth) acrylic acid ester constituent unit, 15 to 71% by mass of a styrene constituent unit, and 8 to 23% by mass of an unsaturated dicarboxylic acid constituent unit. .. At this time, the resin (B2) may further have other structural units.
  • the (meth) acrylic acid ester monomer constituting the (meth) acrylic acid ester structural unit in the resin (B2) is not particularly limited, but is acrylic acid, methyl acrylate, ethyl acrylate, n-butyl acrylate. , 2Ethylhexyl acrylate, methacrylic acid, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, 2-ethylhexyl methacrylate and the like.
  • the (meth) acrylic acid ester monomer is preferably methyl methacrylate.
  • the above-mentioned (meth) acrylic acid ester monomer may be contained alone as a (meth) acrylic acid ester constituent unit, or may be contained in combination of two or more kinds.
  • the content of the (meth) acrylic acid ester constituent unit is 6 to 77% by mass, preferably 20 to 70% by mass, based on the total mass of the resin (B2).
  • the styrene constituent unit in the resin (B2) is not particularly limited, and any known styrene-based monomer can be used.
  • the styrene monomer include styrene, ⁇ -methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, t-butylstyrene and the like from the viewpoint of availability.
  • the styrene monomer is preferably styrene from the viewpoint of compatibility.
  • the above-mentioned styrene monomer may be contained alone as a styrene constituent unit, or may be contained in combination of two or more kinds.
  • the content of the styrene constituent unit is 15 to 71% by mass, preferably 20 to 66% by mass, based on the total mass of the resin (B2).
  • the unsaturated dicarboxylic acid anhydride monomer constituting the unsaturated dicarboxylic acid constituent unit in the resin (B2) is not particularly limited, and examples thereof include acid anhydrides such as maleic acid, itaconic acid, citraconic acid, and aconitic acid. Will be. Of these, the unsaturated dicarboxylic acid anhydride monomer is preferably maleic anhydride from the viewpoint of compatibility with the styrene-based monomer.
  • the unsaturated dicarboxylic acid anhydride monomer described above may be contained alone as an unsaturated dicarboxylic acid constituent unit, or may be contained in combination of two or more.
  • the content of the unsaturated dicarboxylic acid constituent unit is 8 to 23% by mass, preferably 10 to 23% by mass, based on the total mass of the resin (B2).
  • Examples of other structural units in the resin (B2) include N-phenylmaleimide and the like.
  • the content of the other constituent units is preferably 10 mol% or less, more preferably 5 mol% or less, and more preferably 2 mol% or less, based on all the constituent units of the resin (B2). Especially preferable.
  • the total content of the above-mentioned (meth) acrylic acid ester constituent unit, styrene constituent unit, and unsaturated dicarboxylic acid constituent unit is preferably 90 to 100 mol% with respect to all the constituent units of the resin (B2). It is more preferably 95 to 100 mol%, and particularly preferably 98 to 100 mol%.
  • the weight average molecular weight of the resin (B2) is not particularly limited, but is preferably 50,000 to 300,000, more preferably 80,000 to 200,000.
  • the glass transition point of the resin (B2) is preferably 90 to 150 ° C, more preferably 100 to 150 ° C, and particularly preferably 115 to 150 ° C.
  • the resin (B2) include Regisphi R100, R200, R310 (manufactured by Denka), Delpet 980N (manufactured by Asahi Kasei), hh55 (manufactured by Daicel Evonik), and the like.
  • the above-mentioned resin (B2) may be used alone or in combination of two or more.
  • the resin (B2) is used as the high hardness resin
  • the polycarbonate resin containing the structural unit of the general formula (a1-1) as the polycarbonate resin (a1).
  • a monovalent phenol represented by the general formula (a1-3) R1 has 8 to 22 carbon atoms
  • Examples of such a polycarbonate resin include Iupizeta T-1380 (manufactured by Mitsubishi Gas Chemical Company, Inc.), Upiron E-2000 (manufactured by Mitsubishi Engineering Plastics Co., Ltd.) and the like.
  • a copolymer (R100, R200, or R100, R200, or When the resin (B2) of R310; manufactured by Denka Co., Ltd.) is used, it is preferable to use the Iupizeta T-1380 as the polycarbonate resin (a1).
  • a resin (B2) which is a copolymer (R310; manufactured by Denka Co., Ltd.) composed of 6% by mass of methyl methacrylate constituent unit, 71% by mass of styrene, and 23% by mass of maleic anhydride is used.
  • R310 a copolymer
  • Iupizeta T-1380 the polycarbonate resin (a1).
  • the method for producing the resin (B2) is not particularly limited, and examples thereof include a massive polymerization method and a solution polymerization method.
  • the resin (B3) is a polymer containing the structural unit (c) represented by the general formula (3). At this time, it is preferable that the polymer further contains the structural unit (d) represented by the general formula (4). Further, the polymer may further contain other structural units.
  • the content of the structural unit (c) represented by the general formula (3) is preferably 50 to 100 mol%, preferably 60 to 100 mol%, based on all the structural units of the resin (B3). Is more preferable, and 70 to 100 mol% is particularly preferable.
  • the content of the structural unit (d) represented by the general formula (4) is preferably 0 to 50 mol%, preferably 0 to 40 mol%, based on all the structural units of the resin (B3). Is more preferable, and 0 to 30 mol% is particularly preferable.
  • the content of the other constituent units is preferably 10 mol% or less, more preferably 5 mol% or less, and more preferably 2 mol% or less, based on all the constituent units of the resin (B3). Especially preferable.
  • the total content of the constituent unit (c) and the constituent unit (d) is preferably 90 to 100 mol%, more preferably 95 to 100 mol%, based on the total constituent units of the resin (B3). It is preferably 98 to 100 mol%, more preferably 98 to 100 mol%.
  • the weight average molecular weight of the resin (B3) is preferably 15,000 to 75,000, more preferably 20,000 to 70,000, and particularly preferably 25,000 to 65,000.
  • the glass transition point of the resin (B3) is preferably 105 to 150 ° C, more preferably 110 to 140 ° C, and particularly preferably 110 to 135 ° C.
  • the resin (B3) examples include Iupiron KH3410UR, KH3520UR, KS3410UR (manufactured by Mitsubishi Engineering Plastics Co., Ltd.) and the like.
  • the above-mentioned resin (B3) may be used alone or in combination of two or more.
  • the resin (B3) is used as the high hardness resin
  • the polycarbonate resin containing the structural unit of the general formula (a1-1) as the polycarbonate resin (a1).
  • a monovalent phenol represented by the general formula (a1-3) R1 has 8 to 22 carbon atoms
  • Examples of such a polycarbonate resin include Iupizeta T-1380 (manufactured by Mitsubishi Gas Chemical Company, Inc.).
  • Iupiron KS3410UR manufactured by Mitsubishi Engineering Plastics Co., Ltd.
  • Iupizeta T-1380 manufactured by Mitsubishi Gas Chemical Company, Inc.
  • the resin (B3) is used as the high hardness resin, it is preferable to include a resin other than the resins (B1) to (B6).
  • a resin other than the resins (B1) to (B6) a resin containing the constituent unit (d) without containing the constituent unit (c) is preferable, and a resin consisting only of the constituent unit (d) is more preferable.
  • aromatic polycarbonate resins for example, Iupylon S-2000, Iupylon S-1000, Iupylon E-2000; manufactured by Mitsubishi Engineering Plastics Co., Ltd.
  • aromatic polycarbonate resins for example, Iupylon S-2000, Iupylon S-1000, Iupylon E-2000; manufactured by Mitsubishi Engineering Plastics Co., Ltd.
  • the resin (B3) is preferably 45% by mass or more, more preferably 55% by mass, based on the total resin contained in the high hardness resin layer. It is included in the above ratio.
  • the method for producing the resin (B3) is not particularly limited, but the resin (B3) can be produced by the same method as the above-mentioned method for producing the polycarbonate resin (a1) except that bisphenol C is used as the monomer.
  • the resin (B4) is a copolymer containing 5 to 20% by mass of a styrene constituent unit, 60 to 90% by mass of a (meth) acrylic acid ester constituent unit, and 5 to 20% by mass of an N-substituted maleimide constituent unit. be.
  • the resin (B4) may further contain other structural units.
  • the styrene constituent unit in the resin (B4) is not particularly limited, and any known styrene-based monomer can be used.
  • the styrene monomer include styrene, ⁇ -methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, t-butylstyrene and the like from the viewpoint of availability.
  • the styrene monomer is preferably styrene from the viewpoint of compatibility.
  • the above-mentioned styrene monomer may be contained alone as a styrene constituent unit, or may be contained in combination of two or more kinds.
  • the content of the styrene constituent unit is 5 to 20% by mass, preferably 5 to 15% by mass, and more preferably 5 to 10% by mass with respect to the total mass of the resin (B4).
  • the (meth) acrylic acid ester monomer constituting the (meth) acrylic acid ester structural unit in the resin (B4) is not particularly limited, but is acrylic acid, methyl acrylate, ethyl acrylate, n-butyl acrylate. , 2Ethylhexyl acrylate, methacrylic acid, methyl methacrylate, ethyl methacrylate, n-butyl methacrylate, 2-ethylhexyl methacrylate and the like.
  • the (meth) acrylic acid ester monomer is preferably methyl methacrylate.
  • the above-mentioned (meth) acrylic acid ester monomer may be contained alone as a (meth) acrylic acid ester constituent unit, or may be contained in combination of two or more kinds.
  • the content of the (meth) acrylic acid ester constituent unit is 60 to 90% by mass, preferably 70 to 90% by mass, and preferably 80 to 90% by mass with respect to the total mass of the resin (B4). Is more preferable.
  • the N-substituted maleimide constituent unit in the resin (B4) includes N-phenylmaleimide, N-chlorophenylmaleimide, N-methylphenylmaleimide, N-naphthylmaleimide, N-hydroxyphenylmaleimide, N-methoxyphenylmaleimide, and N.
  • Examples thereof include structural units derived from N-arylmaleimide such as -carboxyphenylmaleimide, N-nitrophenylmaleimide, and N-tribromophenylmaleimide. Of these, a structural unit derived from N-phenylmaleimide is preferable from the viewpoint of compatibility with the acrylic resin.
  • the structural unit derived from the above-mentioned N-substituted maleimide may be contained alone as the N-substituted maleimide structural unit, or may be contained in combination of two or more.
  • the content of the N-substituted maleimide constituent unit is 5 to 20% by mass, preferably 5 to 15% by mass, and 5 to 10% by mass with respect to the total mass of the resin (B4). Is more preferable.
  • Examples of the other structural unit include a (meth) acrylic acid ester structural unit represented by the general formula (1), an aliphatic vinyl structural unit represented by the general formula (2), and the like.
  • the general formula (1) and the general formula (2) are the same as those of the resin (B1) described above.
  • the content of the other constituent units is preferably 10 mol% or less, more preferably 5 mol% or less, and more preferably 2 mol% or less, based on all the constituent units of the resin (B4). Especially preferable.
  • the total content of the styrene constituent unit, the (meth) acrylic acid ester constituent unit, and the N-substituted maleimide constituent unit is preferably 90 to 100 mol% with respect to the total constituent unit of the resin (B4). It is more preferably 95 to 100 mol%, and even more preferably 98 to 100 mol%.
  • the weight average molecular weight of the resin (B4) is preferably 50,000 to 250,000, more preferably 100,000 to 200,000.
  • the glass transition point of the resin (B4) is preferably 110 to 150 ° C, more preferably 115 to 140 ° C, and particularly preferably 115 to 135 ° C.
  • the resin (B4) examples include Delpet PM120N (manufactured by Asahi Kasei Corporation).
  • the above-mentioned resin (B4) may be used alone or in combination of two or more.
  • the resin (B4) is used as the high hardness resin
  • the polycarbonate resin containing the structural unit of the general formula (a1-1) as the polycarbonate resin (a1).
  • a monovalent phenol represented by the general formula (a1-3) R1 has 8 to 22 carbon atoms
  • Examples of such a polycarbonate resin include Iupizeta T-1380 (manufactured by Mitsubishi Gas Chemical Company, Inc.).
  • Delpet PM-120N composed of 7% by mass of a styrene constituent unit, 86% by mass of a (meth) acrylic acid ester constituent unit, and 7% by mass of an N-substituted maleimide constituent unit is used, and a polycarbonate resin is used. It is preferable to use Iupizeta T-1380 as (a1).
  • the method for producing the resin (B4) is not particularly limited, but it can be produced by solution polymerization, bulk polymerization, or the like.
  • the resin (B5) is a polymer containing the structural unit (e) represented by the general formula (5). At this time, the resin (B5) may further contain other structural units.
  • the content of the structural unit (e) represented by the general formula (5) is preferably 80 to 100 mol%, preferably 90 to 100 mol%, based on all the structural units of the resin (B5). Is more preferable, and 95 to 100 mol% is particularly preferable.
  • Examples of other structural units include the structural unit (c) represented by the general formula (3), the structural unit (d) represented by the general formula (4), and the like. At this time, the general formula (5) and the general formula (6) are the same as those of the resin (B3) described above.
  • the content of the other constituent units is preferably 10 mol% or less, more preferably 5 mol% or less, and more preferably 2 mol% or less, based on all the constituent units of the resin (B5). Especially preferable.
  • the weight average molecular weight of the resin (B5) is preferably 10,000 to 1,000,000, more preferably 15,000 to 50,000.
  • the glass transition point of the resin (B5) is preferably 120 to 200 ° C, more preferably 130 to 190 ° C, and particularly preferably 140 to 190 ° C.
  • resin (B5) examples include Iupizeta FPC0220 (manufactured by Mitsubishi Gas Chemical Company, Inc.).
  • the above-mentioned resin (B5) may be used alone or in combination of two or more.
  • the polycarbonate resin (B5) When the resin (B5) is used as the high hardness resin, it is preferable to use the polycarbonate resin containing the structural unit of the general formula (a1-1) as the polycarbonate resin (a1).
  • a polycarbonate resin examples include Iupylon E-2000 (manufactured by Mitsubishi Engineering Plastics Co., Ltd.).
  • Iupizeta FPC0220 manufactured by Mitsubishi Gas Chemical Company, Inc.
  • Iupiron E-2000 manufactured by Mitsubishi Engineering Plastics Co., Ltd.
  • the resin (B5) is used as the high hardness resin, it is preferable to include a resin other than the resins (B1) to (B6).
  • a resin other than the resins (B1) to (B6) a resin containing the constituent unit (d) without containing the constituent unit (c) is preferable, and a resin composed of the constituent unit (d) is more preferable. ..
  • aromatic polycarbonate resins for example, Iupylon S-2000, Iupylon S-1000, Iupylon E-2000; manufactured by Mitsubishi Engineering Plastics Co., Ltd.
  • the resin (B5) is preferably 45% by mass or more, more preferably 55% by mass, based on the total resin contained in the high hardness resin layer. It is included in the above ratio.
  • the method for producing the resin (B5) is not particularly limited, but the resin (B5) can be produced by the same method as the above-mentioned method for producing the polycarbonate resin (a1), except that bisphenol AP is used as the monomer.
  • the resin (B6) is a copolymer containing 50 to 95% by mass of a styrene constituent unit and 5 to 50% by mass of an unsaturated dicarboxylic acid constituent unit.
  • the styrene constituent unit the styrene-based monomer described in the resin (B4) can be used.
  • these styrene constituent units may be used alone or in combination of two or more.
  • the content of the styrene constituent unit is preferably 50 to 95% by mass, more preferably 60 to 90% by mass, and 65 to 87% by mass with respect to the total mass of the resin (B6). Is even more preferable.
  • Examples of the unsaturated dicarboxylic acid anhydride monomer constituting the unsaturated dicarboxylic acid constituent unit include acid anhydrides such as maleic acid, itaconic acid, citraconic acid, and aconitic acid. Of these, maleic anhydride is preferable from the viewpoint of compatibility with the styrene-based monomer.
  • the unsaturated dicarboxylic acid anhydride monomer described above may be used alone or in combination of two or more.
  • the content of the unsaturated dicarboxylic acid constituent unit is preferably 5 to 50% by mass, more preferably 10 to 40% by mass, and 13 to 35% by mass with respect to the total mass of the resin (B6). Is more preferable.
  • the resin (B6) may contain a structural unit other than the above-mentioned structural unit.
  • Examples of other structural units include a structural unit (a) derived from the following general formula (1), a structural unit (b) derived from the general formula (2), and the like.
  • R 1 and R 2 are the same as above.
  • R 3 and R 4 are the same as above.
  • the content of the other constituent units is preferably 10 mol% or less, more preferably 5 mol% or less, and more preferably 2 mol% or less, based on all the constituent units of the resin (B6). More preferred.
  • the weight average molecular weight of the resin (B6) is preferably 50,000 to 250,000, more preferably 100,000 to 200,000.
  • the glass transition point of the resin (B6) is preferably 110 to 150 ° C, more preferably 115 to 140 ° C, and particularly preferably 115 to 137 ° C.
  • resin (B6) examples include XIBOND140 and XIBOND160 (manufactured by Polyscope).
  • the above-mentioned resin (B6) may be used alone or in combination of two or more.
  • the resin (B6) is used as the high hardness resin
  • the polycarbonate resin containing the structural unit of the general formula (a1-1) as the polycarbonate resin (a1).
  • a monovalent phenol represented by the general formula (a1-3) R1 has 8 to 22 carbon atoms
  • Examples of such a polycarbonate resin include Iupizeta T-1380 (manufactured by Mitsubishi Gas Chemical Company, Inc.).
  • the method for producing the resin (B6) is not particularly limited, but it can be produced by solution polymerization, bulk polymerization, or the like.
  • At least one selected from the group consisting of the above-mentioned resins (B1) to (B6) may be contained as an alloy.
  • the alloy is not particularly limited, but is an alloy of two types of resin (B1), an alloy of two types of resin (B2), an alloy of two types of resin (B3), and an alloy of two types of resin (B4).
  • Two types of resin (B5) alloy, two types of resin (B6) alloy, resin (B1) and resin (B2) alloy, resin (B2) and resin (B4) alloy, resin (B2) examples thereof include an alloy of the resin (B2) and another high-hardness resin, an alloy of the resin (B2) and an acrylic resin, an alloy of the resin (B6) and an acrylic resin, and the like.
  • Examples of the other high-hardness resin include methyl methacrylate-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, and the like.
  • acrylic resin examples include polymethyl methacrylate, a copolymer of methyl methacrylate and methyl acrylate, or ethyl acrylate.
  • commercially available products include Acrypet (manufactured by Mitsubishi Chemical Corporation), Sumipex (manufactured by Sumitomo Chemical Corporation), Parapet (manufactured by Kuraray Co., Ltd.) and the like.
  • alloys of resins having a higher glass transition temperature it is preferable to use alloys of resins having a higher glass transition temperature.
  • the above alloy may be used alone or in combination of two or more.
  • the alloy manufacturing method is not particularly limited, and examples thereof include a method of melt-kneading at a cylinder temperature of 240 ° C. using a twin-screw extruder having a screw diameter of 26 mm, extruding into strands, and pelletizing with a pelletizer.
  • the high-hardness resin contained in the high-hardness resin layer may be one type or two or more types, and when two or more types are selected from the resins (B1) to (B6), the same or different categories are used. It can be selected and may further contain a high hardness resin other than the resins (B1) to (B6).
  • the content of the high-hardness resin in the high-hardness resin layer is preferably 70 to 100% by mass, more preferably 80 to 100% by mass, and 100% by mass with respect to the total mass of the high-hardness resin layer. % Is particularly preferable.
  • the high hardness resin layer may contain a resin other than the high hardness resin.
  • the other resin include methyl methacrylate-styrene copolymer, polymethyl methacrylate, polystyrene, polycarbonate, cycloolefin (co) polymer resin, acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, and various other resins. Examples include polymers. These other resins may be used alone or in combination of two or more.
  • the content of the other resin is preferably 35% by mass or less, more preferably 25% by mass or less, and particularly preferably 10% by mass or less, based on the total mass of the high hardness resin layer. ..
  • the high hardness resin layer may contain additives and the like. As the additive, those described above can be used.
  • the thickness of the high hardness resin layer is preferably 10 to 250 ⁇ m, more preferably 30 to 200 ⁇ m, and particularly preferably 60 to 150 ⁇ m.
  • the thickness of the high hardness resin layer is 10 ⁇ m or more, the surface hardness is high, which is preferable.
  • the thickness of the high hardness resin layer is 250 ⁇ m or less, the impact resistance is high, which is preferable.
  • a further layer may exist between the base material layer and the high hardness resin layer, but here, a case where the high hardness resin layer is laminated on the base material layer will be described.
  • the method of laminating the high-hardness resin layer on the base material layer is not particularly limited, and is a method of superimposing the separately formed base material layer and the high-hardness resin layer and heat-pressing both of them; the individually formed base material.
  • the coextrusion method is not particularly limited.
  • a high-hardness resin layer is placed on one side of a base material layer with a feed block, extruded into a sheet shape with a T-die, and then cooled while passing through a molding roll to form a desired laminate.
  • a high-hardness resin layer is arranged on one side of the base material layer in the multi-manifold die, extruded into a sheet shape, and then cooled while passing through a molding roll to form a desired laminated body. ..
  • the above method can be used in the same manner when the high hardness resin layer is laminated on a layer other than the base material layer.
  • the total thickness of the base material layer and the high hardness resin layer is preferably 0.5 to 3.5 mm, more preferably 0.5 to 3.0 mm, and even more preferably 1.2 to 3.0 mm.
  • the total thickness is 0.5 mm or more, the rigidity of the sheet can be maintained, which is preferable.
  • the total thickness is 3.5 mm or less, it is preferable because it is possible to prevent the sensitivity of the touch sensor from deteriorating when the touch panel is installed under the sheet.
  • the ratio of the thickness of the base material layer to the total thickness of the base material layer and the high hardness resin layer is preferably 75% to 99%, more preferably 80 to 99%, and particularly preferably 85 to 99%. be. Within the above range, both hardness and impact resistance can be achieved.
  • the resin laminate of the present invention includes a hardcoat layer.
  • a further layer may be present between the hard coat layer and the high hardness resin layer, but preferably the hard coat layer is laminated on the high hardness resin layer. That is, a preferred embodiment of the resin laminate of the present invention is one in which a high-hardness resin layer is laminated on a base material layer and a hard coat layer is laminated on the high-hardness resin layer.
  • the hard coat layer is preferably made of an acrylic hard coat.
  • acrylic hardcoat means a coating film formed by polymerizing a monomer, oligomer or prepolymer containing a (meth) acryloyl group as a polymerization group to form a crosslinked structure.
  • the composition of the acrylic hard coat is a cured product of an active energy ray-curable resin composition, and in its component composition, polyalkylene glycol and a polymerizable functional group selected from an acryloyl group or a methacryloyl group in one molecule. It is preferable to contain 5 to 98% by mass, more preferably 20 to 75% by mass, and even more preferably 30 to 60% by mass of the photopolymerizable monomer containing two or more of them.
  • photopolymerizable monomers and photopolymerizable oligomers other than the above, and (meth) acrylic acid esters, vinyl esters, urethane acrylates, polyester acrylates, polyether acrylates, epoxy acrylates and the like may be used in combination.
  • the photopolymerization initiator preferably contains 0.1 to 10 parts by mass, more preferably 1 to 8 parts by mass, and 2 to 6% by mass with respect to 100 parts by mass of the total of the polymerizable monomers. It is more preferable to include it.
  • the active energy rays are often ultraviolet rays, and examples thereof include metal halide lamps, LED lamps, and high-pressure mercury lamps.
  • examples of the photopolymerization initiator include Irgacure-184, Irgacure-907, and Irgacure-1173.
  • the thickness of the hard coat layer is preferably 1 to 50 ⁇ m, more preferably 2 to 30 ⁇ m, and particularly preferably 4 to 15 ⁇ m.
  • the thickness of the hard coat layer is 1 ⁇ m or more, the surface hardness is improved, which is preferable.
  • the thickness of the hard coat layer is 50 ⁇ m or less, cracks are less likely to occur during sheet cutting, which is preferable.
  • the total thickness of the base material layer, the high hardness resin layer, and the hard coat layer is preferably 0.25 to 5 mm, more preferably 0.35 to 4 mm, and further preferably 0.5 to 3 mm.
  • the total thickness is 0.25 mm or more, it is preferable from the viewpoint of impact resistance.
  • the total thickness is 5 mm or less, it is preferable from the viewpoint of weight reduction.
  • the ratio of the thickness of the base material layer to the total thickness of the base material layer, the high hardness resin layer, and the hard coat layer is preferably 75 to 99%, more preferably 83 to 99%, and particularly preferably 88. It is ⁇ 98%. Within the above range, both surface hardness and impact resistance can be achieved at the same time.
  • an active energy ray-curable resin composition is applied on the high hardness resin layer, and the resin composition is irradiated with active energy rays such as ultraviolet rays.
  • active energy rays such as ultraviolet rays.
  • the hard coat layer on the surface thereof has the following physical properties. That is, the water contact angle is preferably 42 to 65 °, more preferably 42 to 55 °, and even more preferably 42 to 50 °.
  • the surface resistance value is preferably 2.0 ⁇ 10 10 to 8.0 ⁇ 10 14 ⁇ , more preferably 2.0 ⁇ 10 10 to 2.0 ⁇ 10 13 ⁇ , and further preferably 2.0 ⁇ 10 10 to 2.0 ⁇ 10 12 It is ⁇ .
  • the resin laminates of the present invention are, for example, optical displays (eg, cathode ray tubes (CRTs), light emitting diodes (LEDs) displays), cards, camera lenses or bodies, fans, door knobs, faucet handles, mirrors, and vacuum cleaners. It is useful for home appliances such as washing machines, and devices such as portable information terminals (PDAs), mobile phones, liquid crystal display (LCD) panels, touch screens, and removable computer screens.
  • PDAs portable information terminals
  • LCD liquid crystal display
  • the resin laminate of the present invention may be, for example, furniture, doors and windows, toilet bowls and bathtubs, car interior / exterior members, lenses (eg for eyeglasses), goggles, liquid transport members, medical components, or solar panels. It can also be used for such things.
  • the contact angle of water was calculated by the ⁇ / 2 method using DropMaster (model number: DM-300) manufactured by Kyowa Interface Science Co., Ltd.
  • the surface resistance value was measured using R8340 manufactured by ADVANTEST in accordance with JIS K6911.
  • Example 1 The active energy ray-curable resin composition 1 is coated on a laminate using (B1) as a high-hardness resin layer and Iupiron E-2000 manufactured by Mitsubishi Gas Chemicals as a polycarbonate resin layer with a bar coater, and 120 W using a metal halide lamp.
  • the resin composition was cured by irradiating with ultraviolet rays under the conditions of irradiation at / cm for 5 seconds to obtain a resin laminate containing a polycarbonate resin layer, a high hardness resin layer, and a hard coat layer.
  • the thickness of each layer was 0.93 mm for the polycarbonate resin layer, 70 ⁇ m for the high hardness resin layer, and 10 ⁇ m for the hard coat layer.
  • the composition of the active energy ray-curable resin composition 1 is 43 parts by mass of glycerin triacrylate ethoxylated, 30 parts by mass of hexafunctional urethane acrylate, 17 parts by mass of tetrahydrofurfuryl acrylate, 10 parts by mass of pentaerythritol triacrylate, and 1-hydroxylcyclohexylphenyl.
  • the amount was 4 parts by mass of the ketone.
  • the contact angle of water was 51.2 °.
  • the surface resistance value was 1.1 ⁇ 10 11 .
  • a highly transparent double-sided tape manufactured by Sekisui Chemical was used as OCA, and a 0.4 mmt glass plate was attached. After that, it was put into a high-temperature and high-humidity tank at 85 ° C. and a humidity of 85% for 500 hours, and the presence or absence of foaming was visually confirmed. As a result, no foaming was observed.
  • Example 2 The active energy ray-curable resin composition 2 was coated on a laminate using (B1) as a high-hardness resin layer and Iupiron E-2000 manufactured by Mitsubishi Gas Chemicals as a polycarbonate resin layer with a bar coater, and a metal halide lamp was used.
  • the resin composition was cured by irradiating with ultraviolet rays at 120 W / cm for 5 seconds to obtain a resin laminate containing a polycarbonate resin layer, a high hardness resin layer, and a hard coat layer.
  • the thickness of each layer was 0.93 mm for the polycarbonate resin layer, 70 ⁇ m for the high hardness resin layer, and 10 ⁇ m for the hard coat layer.
  • the composition of the active energy ray-curable resin composition 2 was 54 parts by mass of glycerin triacrylate ethoxylated, 30 parts by mass of hexafunctional urethane acrylate, 16 parts by mass of pentaerythritol triacrylate, and 4 parts by mass of 1-hydroxylcyclohexylphenyl ketone.
  • the contact angle of water was 42.3 °.
  • the surface resistance value was 2.9 ⁇ 10 10 .
  • a highly transparent double-sided tape manufactured by Sekisui Chemical was used as OCA, and a 0.4 mmt glass plate was attached. After that, it was put into a high-temperature and high-humidity tank at 85 ° C. and a humidity of 85% for 500 hours, and the presence or absence of foaming was visually confirmed. As a result, no foaming was observed.
  • Example 3 The active energy ray-curable resin composition 3 was coated on a laminate using (B1) as a high-hardness resin layer and Iupiron E-2000 manufactured by Mitsubishi Gas Chemicals as a polycarbonate resin layer with a bar coater, and a metal halide lamp was used.
  • the resin composition was cured by irradiating with ultraviolet rays at 120 W / cm for 5 seconds to obtain a resin laminate containing a polycarbonate resin layer, a high hardness resin layer, and a hard coat layer.
  • the thickness of each layer was 0.93 mm for the polycarbonate resin layer, 70 ⁇ m for the high hardness resin layer, and 10 ⁇ m for the hard coat layer.
  • the composition of the active energy ray-curable resin composition 3 is 40 parts by mass of dipentaerythritol hexaacrylate ethoxylated, 40 parts by mass of hexafunctional urethane acrylate, 15 parts by mass of pentaerythritol triacrylate, 5 parts by mass of 2-isosianatoethyl acrylate, 1 -The amount was 4 parts by mass of hydroxylcyclohexylphenylketone.
  • the contact angle of water was 62.6 °.
  • the surface resistance value was 1.3 ⁇ 10 14 .
  • a highly transparent double-sided tape manufactured by Sekisui Chemical was used as OCA, and a 0.4 mmt glass plate was attached. After that, it was put into a high-temperature and high-humidity tank at 85 ° C. and a humidity of 85% for 500 hours, and the presence or absence of foaming was visually confirmed. As a result, no foaming was observed.
  • Example 4 The active energy ray-curable resin composition 4 was coated on a laminate using (B1) as a high-hardness resin layer and Iupiron E-2000 manufactured by Mitsubishi Gas Chemicals as a polycarbonate resin layer with a bar coater, and a metal halide lamp was used.
  • the resin composition was cured by irradiating with ultraviolet rays at 120 W / cm for 5 seconds to obtain a resin laminate containing a polycarbonate resin layer, a high hardness resin layer, and a hard coat layer.
  • the thickness of each layer was 0.93 mm for the polycarbonate resin layer, 70 ⁇ m for the high hardness resin layer, and 10 ⁇ m for the hard coat layer.
  • the composition of the active energy ray-curable resin composition 4 is 35 parts by mass of ethoxylated dipentaerythritol hexaacrylate, 40 parts by mass of hexafunctional urethane acrylate, 20 parts by mass of pentaerythritol triacrylate, 5 parts by mass of 2-isosianatoethyl acrylate, 1 -The amount was 4 parts by mass of hydroxylcyclohexylphenylketone.
  • the contact angle of water was 60.5 °.
  • the surface resistance value was 7.2 ⁇ 10 14 .
  • a highly transparent double-sided tape manufactured by Sekisui Chemical was used as OCA, and a 0.4 mmt glass plate was attached. After that, it was put into a high-temperature and high-humidity tank at 85 ° C. and a humidity of 85% for 500 hours, and the presence or absence of foaming was visually confirmed. As a result, no foaming was observed.
  • the active energy ray-curable resin composition 5 was coated on a laminate using (B1) as a high-hardness resin layer and Iupiron E-2000 manufactured by Mitsubishi Gas Chemicals as a polycarbonate resin layer with a bar coater, and a metal halide lamp was used.
  • the resin composition was cured by irradiating with ultraviolet rays at 120 W / cm for 5 seconds to obtain a resin laminate containing a polycarbonate resin layer, a high hardness resin layer, and a hard coat layer.
  • the thickness of each layer was 0.93 mm for the polycarbonate resin layer, 70 ⁇ m for the high hardness resin layer, and 10 ⁇ m for the hard coat layer.
  • the composition of the active energy ray-curable resin composition 5 was a mass ratio of urethane acrylate, PEG200, and dimethylol-tricyclodecanediacrylate in a mass ratio of 5: 3: 2.
  • the contact angle of water was 81.6 °.
  • the surface resistance value was 3.6 ⁇ 10 16 .
  • a highly transparent double-sided tape manufactured by Sekisui Chemical was used as OCA, and a 0.4 mmt glass plate was attached. After that, it was put into a high-temperature and high-humidity tank at 85 ° C. and a humidity of 85% for 500 hours, and the presence or absence of foaming was visually confirmed. As a result, the occurrence of foaming was confirmed.
  • the active energy ray-curable resin composition is not applied to the laminate using (B1) as the high-hardness resin layer and Iupiron E-2000 manufactured by Mitsubishi Gas Chemical Company as the polycarbonate resin layer, and includes the polycarbonate resin layer and the high-hardness resin layer. It was a resin laminate. The thickness of each layer was 0.93 mm for the polycarbonate resin layer and 70 ⁇ m for the high hardness resin layer. The contact angle of water was 78.8 °. The surface resistance value was 3.4 ⁇ 10 16 ⁇ . A highly transparent double-sided tape manufactured by Sekisui Chemical was used as OCA, and a 0.4 mmt glass plate was attached.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

L'invention concerne un stratifié de résine qui est peu susceptible d'être chargé et dans lequel le moussage est peu susceptible de se produire même lorsqu'il est placé dans des conditions de température et d'humidité élevées après collage des films optiques entre eux à l'aide d'une colle optique. Ce stratifié de résine comprend une couche de résine de polycarbonate et une couche de revêtement dur et est caractérisé en ce que la couche de revêtement dur contient un produit durci d'une composition de résine durcissable par rayonnement actinique contenant un monomère photopolymérisable qui comprend, dans une molécule unique, un polyalkylène glycol et au moins deux groupes fonctionnels polymérisables choisis parmi des groupes acryloyle et des groupes méthacryloyle, et la couche de revêtement dur ayant un angle de contact avec l'eau allant de 42 à 65° et une valeur de résistance de surface de 2,0×1010-8,0×1014 Ω.
PCT/JP2021/036136 2020-10-02 2021-09-30 Stratifié de résine WO2022071489A1 (fr)

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JP2020-167802 2020-10-02
JP2020167802A JP2022059911A (ja) 2020-10-02 2020-10-02 樹脂積層体

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH093358A (ja) * 1995-06-19 1997-01-07 Mitsubishi Rayon Co Ltd 被覆材組成物およびそれの硬化被膜を表面に有する合成樹脂成形品ならびにその製造方法
WO2009133784A1 (fr) * 2008-04-28 2009-11-05 三菱化学株式会社 Composition de résine durcissable par rayonnement d’énergie active, film durci, stratifié, support d’enregistrement optique et procédé de fabrication d’un film durci
JP2010121013A (ja) * 2008-11-18 2010-06-03 Mitsubishi Chemicals Corp 活性エネルギー線硬化性樹脂組成物、ハードコート用硬化膜及び積層体
JP2020158680A (ja) * 2019-03-27 2020-10-01 中国塗料株式会社 活性エネルギー線硬化型樹脂組成物およびその用途

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH093358A (ja) * 1995-06-19 1997-01-07 Mitsubishi Rayon Co Ltd 被覆材組成物およびそれの硬化被膜を表面に有する合成樹脂成形品ならびにその製造方法
WO2009133784A1 (fr) * 2008-04-28 2009-11-05 三菱化学株式会社 Composition de résine durcissable par rayonnement d’énergie active, film durci, stratifié, support d’enregistrement optique et procédé de fabrication d’un film durci
JP2010121013A (ja) * 2008-11-18 2010-06-03 Mitsubishi Chemicals Corp 活性エネルギー線硬化性樹脂組成物、ハードコート用硬化膜及び積層体
JP2020158680A (ja) * 2019-03-27 2020-10-01 中国塗料株式会社 活性エネルギー線硬化型樹脂組成物およびその用途

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