WO2009116361A1 - アクリル樹脂組成物及びそれを用いた成形物 - Google Patents
アクリル樹脂組成物及びそれを用いた成形物 Download PDFInfo
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- WO2009116361A1 WO2009116361A1 PCT/JP2009/053233 JP2009053233W WO2009116361A1 WO 2009116361 A1 WO2009116361 A1 WO 2009116361A1 JP 2009053233 W JP2009053233 W JP 2009053233W WO 2009116361 A1 WO2009116361 A1 WO 2009116361A1
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- 0 CC(C)Oc(cc1)ccc1-c(cc1)ccc1OC*(C)C Chemical compound CC(C)Oc(cc1)ccc1-c(cc1)ccc1OC*(C)C 0.000 description 4
- JWMKUKRBNODZFA-UHFFFAOYSA-N CCOc1ccccc1C Chemical compound CCOc1ccccc1C JWMKUKRBNODZFA-UHFFFAOYSA-N 0.000 description 2
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
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- 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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
- C09D133/00—Coating compositions based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
-
- 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
- C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/18—Block or graft polymers
- C08G64/186—Block or graft polymers containing polysiloxane sequences
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31507—Of polycarbonate
Definitions
- the present invention relates to an acrylic resin composition containing a specific terminal silicone-modified polycarbonate resin. Furthermore, the present invention relates to a film or sheet having good peelability and low friction using the acrylic resin composition, a molded product such as a multilayer sheet with other resins, and a method for producing them.
- Acrylic resins are applied in various fields such as optical lenses, liquid crystal panel protection members, and water tanks because they are excellent in transparency and scratch resistance. Among them, since the surface is hard and has excellent scratch resistance, it is often used for coating (hard coat) to other resins.
- resin laminates such as multilayer sheets combined with polycarbonate having excellent transparency as well as high impact resistance are fields that require scratch resistance and impact resistance, such as various window glasses, transparent roofs, and transparent panel members. It is very suitable and demand is great.
- a method of laminating an acrylic resin on a polycarbonate resin (1) a method of coextruding a polycarbonate resin and an acrylic resin to form a multilayer sheet, or (2) applying an acrylic resin monomer to a polycarbonate resin sheet substrate, A method of curing with heat is known.
- the method (1) is frequently used in recent years because the work environment contamination due to volatilization of acrylic monomers and the management of the coating / curing apparatus are complicated.
- the acrylic resin peelability from the sheet forming roll at the time of coextrusion is poor, which may lead to poor molding and poor appearance.
- Patent Document 1 an acrylic resin composition to which various lubricants are added.
- Patent Document 2 an acrylic resin composition to which various lubricants are added.
- Patent Document 3 a modified polycarbonate having a silicone structure in the main chain is known (Patent Document 3). Since this modified polycarbonate is a polymer, its volatility is improved, but the releasability is not always sufficient and there is room for improvement.
- Patent Document 4 Although the modified polycarbonate itself having a silicone structure at the molecular terminal is known (Patent Document 4), there is no application example to an acrylic resin having a different refractive index and compatibility, and transparency, lubricity, and environmental stability are not known. There were no findings.
- JP-A-2005-2225018 JP 2006-205478 A Japanese Patent Laid-Open No. 5-200827 JP-A-7-258398
- An object of the present invention is to provide an acrylic resin composition that can solve the above-mentioned problems of the prior art and can remarkably improve the releasability from the molding roll during the production of the acrylic resin sheet. In particular, it improves the releasability of the acrylic resin from the molding roll during the production of a multilayer sheet of polycarbonate resin and acrylic resin, reduces the amount of lubricant accumulated on the roll (low roll accumulation), and even in high-temperature and high-humidity environments.
- An object of the present invention is to provide an acrylic resin / polycarbonate resin multilayer sheet capable of maintaining a good appearance (excellent environmental stability) and an acrylic resin composition capable of forming such a multilayer sheet.
- the present inventors have searched for a new lubricant to be blended in an acrylic resin composition, particularly a suitable lubricant for an acrylic resin composition for lamination with a polycarbonate resin, and as a result of intensive investigation, identified
- the terminal silicone-modified polycarbonate resin was found to be a lubricant having excellent releasability, stability at high temperature and high humidity, and low roll accumulation, and the present invention was completed.
- the present invention relates to the following acrylic resin composition and method for producing the same, a molded product comprising the same, a multilayer laminate, and a method for producing the same.
- An acrylic resin composition comprising an end-modified polycarbonate resin mainly composed of an acrylic resin and having a terminal group represented by the following general formula (1).
- R 1 represents an alkylene group having 1 to 20 carbon atoms
- R 2 to R 6 are hydrogen, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a carbon number
- R 7 to R 8 are hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkenyl having 2 to 10 carbon atoms.
- a group, an alkoxy group having 1 to 5 carbon atoms, or an aralkyl group having 7 to 17 carbon atoms, a represents an integer of 1 to 1000.
- R 9 to R 12 are hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group having 1 to 9 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, An alkoxy group having 1 to 5 carbon atoms or an aralkyl group having 7 to 17 carbon atoms,
- X is a group selected from the group consisting of divalent organic groups represented by the following formula:
- R 13 to R 14 represent hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an aryl group having 6 to 12 carbon atoms
- R 13 to R 14 are bonded together to form a carbocyclic or heterocyclic ring
- R 15 to R 18 are hydrogen, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms Or an alkenyl group having 2 to 10 carbon atoms
- R 19 to R 20 each represents an alkylene group having 1 to 20 carbon atoms
- b is an integer from 0 to 20
- c is an integer from 1 to 1000.
- the repeating unit represented by the general formula (2) includes 2,2-bis (4-hydroxyphenyl) propane, 1,1-bis (4-hydroxyphenyl) cyclohexane, 2,2-bis (4- Derived from hydroxy-3-methylphenyl) propane, bis (4-hydroxyphenyl) methane, 4,4′-biphenyldiol, or ⁇ , ⁇ -bis [3- (o-hydroxyphenyl) propyl] polydimethylsiloxane 7.
- a multilayer laminate comprising at least a layer made of the acrylic resin composition according to any one of 1) to 12) and a layer made of another resin.
- R 1 represents an alkylene group having 1 to 20 carbon atoms
- R 2 to R 6 are hydrogen, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a carbon number
- R 7 to R 8 are hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkenyl having 2 to 10 carbon atoms.
- a group, an alkoxy group having 1 to 5 carbon atoms, or an aralkyl group having 7 to 17 carbon atoms, a represents an integer of 1 to 1000.
- a method for producing a multilayer laminate comprising at least a layer comprising the acrylic resin composition according to any one of 1) to 12) and another resin layer, the resin forming the other resin layer; A method for producing a multilayer laminate, comprising coextruding an acrylic resin composition.
- a method for producing a multilayer laminate comprising at least a layer made of the acrylic resin composition according to any one of 1) to 12) and a layer made of another resin, on the other resin layer, And a step of polymerizing the acrylic monomer in the mixture by heat or light after applying a mixture of the acrylic monomer and a terminal-modified polycarbonate resin having a terminal group represented by the following general formula (1).
- the manufacturing method of a multilayer laminated body is a method for producing a multilayer laminated body.
- R 1 represents an alkylene group having 1 to 20 carbon atoms
- R 2 to R 6 are hydrogen, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a carbon number
- R 7 to R 8 are hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkenyl having 2 to 10 carbon atoms.
- a group, an alkoxy group having 1 to 5 carbon atoms, or an aralkyl group having 7 to 17 carbon atoms, a represents an integer of 1 to 1000.
- the terminal-modified polycarbonate resin blended in the acrylic resin composition of the present invention has a low volatility because it is a polymer as compared to a conventional acrylic resin lubricant. Also, compared to modified polycarbonate with a silicone structure in the main chain, it has a polysiloxane group at the end, so the degree of freedom of the polysiloxane group is high and the slipperiness on the resin surface is unexpectedly good, and an excellent lubricant effect is obtained in a small amount be able to.
- an acrylic resin composition containing such a terminal-modified polycarbonate resin exhibits excellent roll releasability without causing volatilization of lubricant or roll contamination (accumulation of lubricant on the roll) or deterioration of slipperiness due to large use.
- the molded product made of the acrylic resin composition is not easily whitened even in a high-temperature and high-humidity environment, and can maintain good slipperiness.
- the roll peelability of the acrylic resin layer is improved and the amount of roll deposits is remarkably reduced, so that the polycarbonate resin using the acrylic resin composition of the present invention is used.
- the laminate does not whiten in a high temperature and high humidity environment and maintains a good appearance. Therefore, it is suitable for fields requiring scratch resistance and impact resistance, such as various window glass materials, optical members, LCD and EL display protective sheets.
- the acrylic resin composition of the present invention is mainly composed of an acrylic resin and contains a terminal-modified polycarbonate resin.
- Acrylic resin that is the main component of the resin composition of the present invention is not particularly limited as long as it is a resin mainly composed of an acrylic monomer. Specific examples include acrylic monomers such as (meth) acrylic acids, (meth) acrylates, and (meth) acrylamides.
- Examples of (meth) acrylic acids include methacrylic acid and acrylic acid.
- Examples of (meth) acrylates include alkyl methacrylates having an alkyl group of 1 to 20 carbon atoms such as methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, cyclohexyl methacrylate, octyl methacrylate, lauryl methacrylate, stearyl methacrylate, methyl acrylate, Examples include alkyl acrylates having an alkyl group having 1 to 20 carbon atoms such as ethyl acrylate, propyl acrylate, butyl acrylate, octyl acrylate, lauryl acrylate, stearyl acrylate, and glycidyl (meth) acrylates such as glycidyl methacrylate and glycidyl acrylate.
- Examples of (meth) acrylamides include
- the acrylic resin composed of the acrylic monomer may be a homopolymer composed of only one acrylic monomer, a copolymer obtained by combining a plurality of acrylic monomers, or an acrylic monomer as a main component. It may be a copolymer with other vinyl monomer less than 50% by weight. Examples of other vinyl monomers include styrene, ⁇ -methylstyrene, acrylonitrile, butadiene, and vinyl acetate.
- the acrylic resin used in the present invention is preferably a copolymer having polymethyl methacrylate or methyl methacrylate as a main component, and particularly preferable is a combination of methyl methacrylate as a main component and methacrylate as a copolymer component. It is a methyl methacrylate copolymer.
- the molecular weight of the acrylic resin used in the present invention is not particularly limited, but is preferably one that can be heated and melted and extruded. Specifically, those having a polystyrene-reduced weight average molecular weight in the range of 50,000 to 500,000 are preferred, and those having a weight average molecular weight of 70,000 to 300,000 are more preferred.
- the acrylic resin production method is generally roughly classified into an emulsion polymerization method, a suspension polymerization method, and a continuous polymerization method.
- the acrylic resin used in the present invention can be a resin produced by any polymerization method, but is preferably produced by a suspension polymerization method or a continuous polymerization method, more preferably a continuous polymerization method. It is manufactured by law.
- the continuous polymerization method is divided into a continuous bulk polymerization method and a continuous solution polymerization method. In the present invention, an acrylic resin obtained by either method can be used.
- an emulsifier as a polymerization aid and an additive such as a suspension dispersant are not used at all, and a polymerization initiator for initiating polymerization and Only a chain transfer agent for adjusting the molecular weight is added.
- examples of the solvent include toluene, ethylbenzene, xylene, hexane, octane, cyclohexane, methanol, ethanol, propanol, butanol, acetone, and methyl ethyl ketone.
- the polymerization reaction is not limited to these. It can be carried out more effectively and should not remain in the obtained acrylic resin.
- a general azo polymerization initiator or peroxide polymerization initiator can be selected.
- azo polymerization initiators include 2,2′-azobisisobutyronitrile, 2,2′-azobis (2-methylbutyronitrile), 1,1′-azobis (cyclohexane-1-carbonitrile
- peroxide polymerization initiation include, but are not limited to, benzoyl peroxide, di-t-butyl peroxide, di-t-amyl peroxide, and the like.
- Mercaptans are generally used as chain transfer agents, and examples of mercaptans include, but are not limited to, butyl mercaptan, hexyl mercaptan, octyl mercaptan, dodecyl mercaptan, and the like.
- Terminal-modified polycarbonate resin used in the present invention has a terminal polysiloxane structure represented by the following general formula (1).
- R 1 represents an alkylene group having 1 to 20 carbon atoms, preferably 1 to 6 carbon atoms. Specific examples include an ethylene group, a propylene group, and a methylethylene group.
- R 2 to R 6 each represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkenyl group having 2 to 10 carbon atoms. These may be the same or different.
- the alkyl group having 1 to 10 carbon atoms include a cycloalkyl group such as a methyl group, an ethyl group, an n-propyl group, an n-butyl group, and a cyclohexyl group.
- the aryl group having 6 to 12 carbon atoms include a phenyl group and a tolyl group.
- alkenyl group having 2 to 10 carbon atoms examples include vinyl group, allyl group, hexenyl group and octenyl group. Of these, a hydrogen atom, a methyl group, an ethyl group, a butyl group and a phenyl group are preferable.
- R 7 to R 8 are hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group having 1 to 10 carbon atoms (preferably 1 to 4 carbon atoms), an aryl group having 6 to 12 carbon atoms, and an alkenyl group having 2 to 10 carbon atoms. And a group selected from the group consisting of a group, an alkoxy group having 1 to 5 carbon atoms, and an aralkyl group having 7 to 17 carbon atoms (preferably 7 carbon atoms).
- R 7 to R 8 may be the same or different.
- R 7 to R 8 are particularly preferably an alkyl group having 1 to 9 carbon atoms or an aryl group having 6 to 12 carbon atoms.
- a methyl group, an ethyl group, a propyl group, an n-butyl group, a sec-butyl group, a tert-butyl group, a phenyl group, a methoxy group and the like are particularly preferable, and a methyl group, a butyl group or a phenyl group is particularly preferable. It is a group.
- polysiloxane group contained in the general formula (1) include those derived from polydimethylsiloxane, polydiphenylsiloxane, polymethylphenylsiloxane, polyvinylmethylsiloxane, polymethylhydrogensiloxane, and the like. It is done. These may be included in combination of two or more.
- the length of the polysiloxane group is represented by the degree of polymerization a in the general formula (1).
- a is from 1 to 1000, preferably from 4 to 100, more preferably from 6 to 50.
- a is large to some extent.
- the degree of polymerization a is only an average degree of polymerization, and usually the degree of polymerization exists with a distribution.
- the polycarbonate resin forming the main chain of the terminal-modified polycarbonate resin of the present invention having the terminal group represented by the general formula (1) is not particularly limited as long as it is a general polycarbonate resin, but preferably the following general formula It has a repeating unit (carbonate unit) represented by (2).
- R 9 to R 12 are hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group having 1 to 9 carbon atoms, an aryl group having 6 to 12 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, An alkoxy group having 1 to 5 carbon atoms, or an aralkyl group having 7 to 17 carbon atoms.
- Particularly preferred as R 9 to R 12 are hydrogen or a methyl group.
- X is a group selected from the group consisting of divalent organic groups represented by the following formula.
- R 13 to R 14 represent hydrogen, fluorine, chlorine, bromine, iodine, an alkyl group having 1 to 9 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, an aryl group having 6 to 12 carbon atoms, R 13 to R 16 are bonded together to form a carbocyclic or heterocyclic ring.
- R 15 to R 18 represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkenyl group having 2 to 10 carbon atoms. These may be the same or different.
- the alkyl group having 1 to 10 carbon atoms include a cycloalkyl group such as a methyl group, an ethyl group, a propyl group, and a butyl group, and a cyclohexyl group.
- the aryl group having 6 to 12 carbon atoms include a phenyl group and a tolyl group.
- alkenyl group having 2 to 10 carbon atoms examples include vinyl group, allyl group, hexenyl group and octenyl group. Of these, a hydrogen atom, a methyl group, a vinyl group and a phenyl group are preferable.
- R 19 to R 20 represent an alkylene group having 1 to 20 carbon atoms, preferably 2 to 8 carbon atoms, and specifically include an ethylene group, an n-propylene group, an n-butylene group, and the like.
- b represents an integer of 0 to 20.
- c represents an integer of 1 to 1000, preferably 4 to 100, more preferably 6 to 50.
- repeating unit represented by the general formula (2) include 2,2-bis (4-hydroxyphenyl) propane, 1,1-bis (4-hydroxyphenyl) cyclohexane, and 2,2-bis. From (4-hydroxy-3-methylphenyl) propane, bis (4-hydroxyphenyl) methane, 4,4′-biphenyldiol, or ⁇ , ⁇ -bis [3- (o-hydroxyphenyl) propyl] polydimethylsiloxane Mention may be made of the derived structural units.
- the terminal-modified polycarbonate resin used in the present invention is a polycarbonate resin composed of a repeating unit represented by the above general formula (2), and the end thereof has a structure represented by the above general formula (1). It is what. More specifically, it has a structure represented by the following general formula (2 ′).
- R 9 to R 12, X and n represent the same meaning as in the general formula (2), and (A) represents the terminal group of the general formula (1).
- n (average polymerization degree) represents an integer of 1 or more, preferably 7 to 200 on average, and more preferably 20 to 100 on average.
- the 1% heat loss temperature of the end-modified polycarbonate resin is preferably 230 to 490 ° C, and more preferably 280 to 490 ° C.
- the 1% heat loss temperature of the terminal-modified polycarbonate resin is less than 230 ° C., volatilization during molding increases and the effect of roll peeling tends to become unstable.
- the method for producing the terminal-modified polycarbonate resin used in the present invention is not particularly limited.
- it can be produced by the method disclosed in JP-A-7-258398.
- it can be produced by reacting a bisphenol represented by the following general formula (3) and a polysiloxane group-containing monohydric phenol represented by the general formula (4) with a carbonate-forming compound.
- R 9 ⁇ R 12 and X in formula (3) represents the same meaning as R 9 ⁇ R 12 and X respectively in the general formula (2).
- R 1 ⁇ R 8 and a represents the same meaning as R 1 ⁇ R 8 and a in the general formula (1), respectively.
- the polysiloxane group-containing monohydric phenol represented by the general formula (4) is produced by a known hydrosilylation reaction, for example, a monohydric phenol having an unsaturated group (hereinafter referred to as “unsaturated group-containing monohydric phenol”).
- a monohydric phenol having an unsaturated group hereinafter referred to as “unsaturated group-containing monohydric phenol”.
- it is produced by a method in which a polysiloxane having a Si—H group at one end (hereinafter simply referred to as “hydrogen polysiloxane”) is subjected to an addition reaction in the presence of a platinum catalyst.
- Hydrogen polysiloxanes used for the production of polysiloxane group-containing monohydric phenols include polydimethylsiloxane, polydiphenylsiloxane, polymethylphenylsiloxane, polyvinylmethylsiloxane, polymethylhydrogen having a Si—H group at one end. Examples thereof include siloxane. These may be included in combination of two or more.
- the molecular weight of hydrogen polysiloxane is represented by the degree of polymerization a in the general formula (4).
- a is from 1 to 1000, preferably from 4 to 100, more preferably from 6 to 50.
- a is large to some extent.
- the degree of polymerization a represents the average degree of polymerization, and usually the degree of polymerization exists with a distribution.
- the unsaturated group-containing monohydric phenol that reacts with hydrogen polysiloxane include p-hydroxystyrene, p-isopropenylphenol, o-allylphenol, p-allylphenol, eugenol, isoeugenol, 2,6 -Dimethyl-4-allylphenol, 4- (1-butenyl) phenol, 4- (1-pentanyl) phenol, 4- (1-hexanyl) phenol, 4- (1-octanyl) phenol, 4- (1-decanyl) ) Phenol, 4- (1-dodecanyl) phenol, 4- (1-tetradecanyl) phenol, 4- (1-hexadecanyl) phenol, 4- (1-nonadecanyl) phenol and the like. Two or more of these compounds can be used in combination. Of these, o-allylphenol is particularly preferred.
- the catalyst used for hydrosilylation may be either homogeneous or heterogeneous, specifically platinum complexes represented by chloroplatinic acid and the like. , Metal platinum, octacarbonyl dicobalt, palladium complex, rhodium complex and the like.
- the reaction is carried out in a solvent in which the unsaturated group-containing monohydric phenol used in the present invention is dissolved.
- halogenated hydrocarbons such as carbon tetrachloride, chloroform and 1,2-dichloroethane
- aromatic hydrocarbons such as benzene, toluene and xylene
- aromatic halides such as monochlorobenzene and dichlorobenzene, methyl ethyl ketone and acetic acid
- Ethyl, 1,4-dioxane, cyclohexanone, pyridine and the like can be mentioned, but aromatic hydrocarbons such as benzene, toluene and xylene are desirable depending on solubility and compatibility with the catalyst.
- the reaction temperature is preferably 60 ° C. or higher.
- polysiloxane group-containing monohydric phenol represented by the general formula (4) include compounds having the following structural formula.
- a is an integer of 1 to 1000, and (a + d) ⁇ 1000.
- the polysiloxane group-containing monohydric phenol can be used in combination of two or more. Furthermore, in addition to the polysiloxane group-containing monohydric phenol represented by the general formula (4), terminal termination of alkyl-substituted phenols such as phenol and pt-butylphenol, alkyl ester-substituted phenols such as butyl parahydroxyphenylbenzoate, etc. It is also possible to use an agent in combination, but it is preferable to limit it to less than 50% of the polysiloxane group-containing monohydric phenol represented by the general formula (4) by weight ratio.
- bisphenols represented by the general formula (3) include 4,4′-biphenyldiol, bis (4-hydroxyphenyl) methane, bis (4-hydroxyphenyl) ether, and bis (4-hydroxy Phenyl) sulfone, bis (4-hydroxy-3-methylphenyl) sulfone, bis (4-hydroxyphenyl) sulfoxide, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) ketone, 1,1-bis ( 4-hydroxyphenyl) ethane, 2,2-bis (4-hydroxyphenyl) propane (bisphenol A; BPA), 2,2-bis (4-hydroxy-3-tert-butylphenyl) propane, 2,2-bis (4-Hydroxyphenyl) butane, 1,1-bis (4-hydroxyphenyl) cyclohexane 2,2-bis (4-hydroxy-3-methylphenyl) propane, 2,2-bis (4-hydroxy-3,5-dimethylphenyl) propane, 1,1-bis (4-bis (4-
- 2,2-bis (4-hydroxyphenyl) propane 1,1-bis (4-hydroxyphenyl) cyclohexane
- 2,2-bis (4-hydroxy-3-methylphenyl) propane bis (4 It is preferably selected from -hydroxyphenyl) methane, 4,4'-biphenyldiol, ⁇ , ⁇ -bis [3- (o-hydroxyphenyl) propyl] polydimethylsiloxane.
- Examples of the carbonic acid ester forming compound include phosgene, bisallyl carbonate such as diphenyl carbonate, di-p-tolyl carbonate, phenyl-p-tolyl carbonate, di-p-chlorophenyl carbonate, and dinaphthyl carbonate.
- a method for producing the terminal-modified polycarbonate resin used in the present invention a known method used for producing a polycarbonate from bisphenol A, for example, a direct reaction between a bisphenol and phosgene (phosgene method), or a bisphenol and A method such as a transesterification reaction (transesterification method) with bisaryl carbonate can be adopted, and a bisphenol and a polysiloxane group-containing monohydric phenol can be reacted with a carbonate-forming compound.
- phosgene method phosgene method
- transesterification reaction transesterification method
- the phosgene method is preferred in consideration of the heat resistance and transesterification rate of the polysiloxane group-containing monohydric phenol represented by the general formula (4).
- the polysiloxane group-containing monohydric phenol is preferably used in a proportion of 80% by weight or less based on the total bisphenol.
- phosgene method in the presence of an acid binder and a solvent, a bisphenol represented by general formula (3) and a polysiloxane group-containing monohydric phenol represented by general formula (4) are reacted with phosgene.
- the acid binder include pyridine and alkali metal hydroxides such as sodium hydroxide and potassium hydroxide.
- the solvent include methylene chloride, chloroform, chlorobenzene, and xylene.
- a catalyst such as a tertiary amine such as triethylamine or a quaternary ammonium salt is used, and in order to adjust the degree of polymerization, the polysiloxane group-containing monohydric phenol is a molecular weight regulator.
- a small amount of an antioxidant such as sodium sulfite or hydrosulfite, or a branching agent such as phloroglucin or isatin bisphenol may be added.
- the reaction is usually in the range of 0 to 150 ° C., preferably 5 to 40 ° C. While the reaction time depends on the reaction temperature, it is generally 0.5 min-20 hr, preferably 1 min-2 hr. Further, during the reaction, it is desirable to maintain the pH of the reaction system at 10 or more.
- the bisphenol represented by the general formula (3), the polysiloxane group-containing monohydric phenol represented by the general formula (4) and bisaryl carbonate are mixed and reacted at high temperature under reduced pressure.
- the reaction temperature is usually 150 to 350 ° C., preferably 200 to 300 ° C., and the degree of vacuum is preferably 1 mmHg or less at the end, and the phenol derived from the bisaryl carbonate produced by the transesterification reaction.
- the product is distilled out of the system.
- the reaction time depends on the reaction temperature, the degree of reduced pressure, etc., but is usually about 1 to 12 hours.
- the reaction is preferably performed in an atmosphere of an inert gas such as nitrogen or argon, and the reaction may be performed by adding an antioxidant or a branching agent as desired.
- the 1% heat loss temperature of the end-modified polycarbonate resin is preferably 230 to 490 ° C, and more preferably 280 to 490 ° C. When the 1% heat loss temperature of the terminal silicone-modified polycarbonate resin is less than 230 ° C., the volatilization during molding increases and the effect of roll peeling tends to become unstable.
- the total amount of polycarbonate terminals (100%) is not necessarily expressed by the general formula (1) due to the presence of polysiloxane group-containing monohydric phenol impurities, unreacted substances during polymerization, and the like.
- at least 80% or more of the polycarbonate terminals are present as terminal groups represented by the general formula (1), and those having at least one siloxane at the terminals are 90%. % Or more.
- examples of the terminal having a structure other than the terminal group represented by the general formula (1) include an unreacted phenol terminal and a chloroformate terminal. Some of them form a ring and have no terminal.
- the silicone component of the terminal-modified polycarbonate resin of the present invention is preferably contained in an average amount of 1 to 50% by weight, more preferably 5 to 40% by weight as Si element with respect to the total amount of the terminal-modified polycarbonate resin.
- Si element is contained in addition to the terminal, such as when using a polycarbonate resin having a silicone structure in the main chain, the Si element content (terminal Si element content) derived from the terminal silicone is 40% by weight in the total Si element content. It is preferable to be contained above.
- Acrylic resin composition The acrylic resin composition of this invention mix
- the blending amount of the terminal-modified polycarbonate resin is preferably 0.1 to 10% by weight. Further, 0.5 to 5% by weight is preferable for improving the mold roll peelability when co-extrusion with other resins. When the addition amount is less than 0.1% by weight, the peelability and the surface modification effect are insufficient, and when the addition amount exceeds 10% by weight, the transparency and the appearance may be deteriorated.
- fatty acid amides that can be used in combination include ethylene bis stearic acid amide, methylene bis stearic acid amide, stearic acid amide, and behenic acid amide.
- higher alcohols include stearyl alcohol, lauryl alcohol, behenyl alcohol, and palmityl alcohol. It is done.
- lubricant when such other lubricant is used in combination, it is preferably used in the range of 0.05 to 1.0% by weight based on the acrylic resin composition. Further, it is preferably used in a ratio of 1 to 40 parts by weight with respect to 100 parts by weight of the terminal-modified polycarbonate resin.
- the acrylic resin monomer (acrylic monomer) is mixed with the terminal-modified polycarbonate resin of the present invention, and then the acrylic resin composition is produced.
- the acrylic resin composition is produced. Examples thereof include a method of polymerizing a monomer to obtain an acrylic resin, and a method of adding a terminal-modified polycarbonate resin to the acrylic resin.
- benzoyl peroxide or azobis As a method for polymerizing the acrylic monomer after mixing the terminal-modified polycarbonate resin with the acrylic monomer, specifically, in a state where the terminal-modified polycarbonate is dissolved or dispersed in the acrylic monomer, benzoyl peroxide or azobis is used. Polymerization (curing) by adding a radical initiator such as isobutyronitrile, benzophenone, 2-methyl-1 [4- (methylthio) phenyl] -2-morpholinopropan-1-one, and further applying heat or light Is used. As the polymerization method, suspension polymerization, emulsion polymerization, bulk polymerization, solution polymerization and the like are used.
- the heating temperature is 20 to 160 ° C. and the heating time is about 0.1 to 24 hours.
- the heating time is about 0.1 to 24 hours.
- it is preferably carried out under conditions of a wavelength of 200 to 500 nm and an irradiation time of about 0.1 to 30 minutes.
- the mixing method of the acrylic monomer and the terminal-modified polycarbonate resin is not particularly limited.
- a mixing method using a cylindrical rotary blender or a stirrer can be employed.
- a divinyl compound as a crosslinking agent such as N, N′-methylenebisacrylamide or ethylene glycol dimethacrylate may be added to the acrylic monomer.
- the terminal-modified polycarbonate resin and other additives used as necessary are added to the acrylic resin and then kneaded by a known method.
- the kneading is preferably performed at a temperature of room temperature to 270 ° C. for about 1 to 120 minutes using a kneading machine such as a rotating container type, a fixed container type, or a roll type.
- the acrylic resin composition layer is laminated as a hard coat later on another resin layer, a method of polymerizing the acrylic monomer after mixing the acrylic monomer and the terminal-modified polycarbonate resin is preferable.
- a method of polymerizing the acrylic monomer after mixing the acrylic monomer and the terminal-modified polycarbonate resin is preferable.
- a multilayer laminate multilayer sheet
- a method of adding a terminal-modified polycarbonate resin to the acrylic resin is preferable.
- the acrylic resin composition of the present invention can be molded by a known molding method, and can be used for wet molding, compression molding, vacuum compression molding, extrusion molding, injection molding, inflation molding, and the like.
- the thickness of the molded product is preferably about 0.1 mm to 2 cm, but when multilayer molding is performed by coextrusion with other resins, a thickness of about 10 to 100 ⁇ m is preferable. .
- the molded product of the present invention is obtained by molding the above-described acrylic resin composition of the present invention.
- the molding method for obtaining the molded product is not particularly limited, and wet molding, compression molding, vacuum compression molding, extrusion molding, injection molding, inflation molding, and the like can be employed.
- a film or a sheet-like molded object is preferable.
- the thickness of the molded product can be appropriately set according to the use. About 1 mm to 2 cm is preferable.
- Examples of the molded product of the present invention include, other than the above-described film or sheet-shaped molded product, for example, an injection molded product, a compression molded product, a vacuum compression molded product, an inflation molded product, and a cast molded product.
- Multilayer laminate The acrylic resin composition of the present invention can be combined with other resins to form a multilayer laminate. That is, the multilayer laminate of the present invention is characterized by including at least a layer comprising the above-described acrylic resin composition of the present invention.
- the method for forming the multilayer laminate is not particularly limited, and is a method of multilayer molding of the acrylic resin composition of the present invention and another resin by coextrusion, the acrylic resin composition of the present invention is molded into a film or a sheet, and then A method of laminating with a film or sheet-shaped product made of another resin, a method of extruding an acrylic resin composition on a film or sheet-shaped product made of another resin, a film or sheet-like product made of another resin Examples thereof include a method of forming an acrylic resin composition layer by applying an acrylic monomer thereon and then curing by heat or light irradiation. A particularly preferred method is coextrusion.
- the thickness of the acrylic resin composition layer can be appropriately set according to the use, but is preferably about 10 to 100 ⁇ m, more preferably 15 to It is about 80 ⁇ m.
- other resins that can form an acrylic resin composition and a multilayer laminate include polycarbonate, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyarylate, polystyrene, ABS, MS, AS, polyamide, polyoxy Examples include methylene, polyphenylene ether, polyvinyl chloride, polyvinylidene chloride, polyethylene, polypropylene, PTFE, polysulfone, polyether sulfone, TPX, polycycloolefin, and polyvinyl adamantane. Among them, excellent transparency and impact resistance. A combination with polycarbonate is preferred.
- the method for producing a multilayer laminate of the present invention will be described below using a polycarbonate resin as a base material as an example of a multilayer sheet production process by coextrusion.
- a polycarbonate resin as a base material as an example of a multilayer sheet production process by coextrusion.
- an extrusion apparatus used for producing a multilayer sheet one main extruder for extruding a polycarbonate resin constituting a substrate layer, and one or two for extruding an acrylic resin composition covering one or both sides of the substrate layer
- the sub-extruder is usually smaller than the main extruder.
- the temperature condition of the main extruder is usually 230 to 290 ° C, preferably 240 to 280 ° C, and the temperature condition of the sub-extruder is usually 220 to 270 ° C, preferably 230 to 260 ° C.
- a known method such as a feed block method or a multi-manifold method can be used.
- the molten resin laminated in the feed block is guided to a sheet forming die such as a T die, and after being formed into a sheet shape, the molten resin flows into a forming roll (polishing roll) whose surface is mirror-finished. Form.
- the sheet-like molded product is mirror-finished and cooled while passing through the molding roll, thereby forming a laminate.
- the molten resin laminated in the die is similarly formed into a sheet inside the die, and then surface finish and cooling are performed with a forming roll to form a laminated body.
- the die temperature is usually 250 to 320 ° C., preferably 270 to 300 ° C.
- the forming roll temperature is usually 100 to 190 ° C., preferably 110 to 180 ° C.
- a vertical roll or a horizontal roll can be appropriately used.
- the above-described multilayer laminate of the present invention can further be provided with a hard coat layer.
- the hard coat layer is provided on the outermost surface of the multilayer laminate. Therefore, the hard coat is preferably applied to the surface of the acrylic resin composition layer of the present invention.
- a hard coat layer cured by heat curing or active energy rays is laminated in order to improve scratch resistance.
- An example of a coating that is cured using active energy rays is a resin composition in which a photopolymerization initiator is added as a curing catalyst to a resin composition composed of a monofunctional or polyfunctional acrylate monomer or oligomer alone or a plurality thereof.
- thermosetting resin coatings include polyorganosiloxane-based and cross-linked acrylic-based ones.
- coatings include organic solvents, various stabilizers such as UV absorbers, light stabilizers, and antioxidants, leveling agents, antifoaming agents, thickeners, antistatic agents, and antifogging as necessary.
- a surfactant such as an agent may be added as appropriate.
- the hard coat treatment applied to the polycarbonate resin surface on which the laminate is not coextruded is applied to improve the scratch resistance, and a hard coat layer cured by active energy rays is laminated.
- a coating that is cured using active energy rays is a resin composition in which a photopolymerization initiator is added as a curing catalyst to a resin composition composed of a monofunctional or polyfunctional acrylate monomer or oligomer alone or a plurality thereof.
- thermosetting resin coatings include polyorganosiloxane-based and cross-linked acrylic-based ones.
- Such a resin composition is commercially available as a hard coat agent for an acrylic resin or a polycarbonate resin, and may be appropriately selected in consideration of suitability with a coating line.
- coatings include organic solvents, various stabilizers such as UV absorbers, light stabilizers, and antioxidants, leveling agents, antifoaming agents, thickeners, antistatic agents, and antifogging as necessary.
- a surfactant such as an agent may be added as appropriate.
- An example of a coating that is cured using active energy rays on an acrylic resin composition layer is a hexafunctional urethane acrylate oligomer copolymerizable with 2 to 80% by weight of a bifunctional (meth) acrylate compound having a weight average molecular weight of 300 or less.
- Examples include those obtained by adding 1 to 10 parts by weight of the photopolymerization initiator (B) to 100 parts by weight of the photopolymerizable composition (A) comprising 20 to 98% by weight.
- bifunctional (meth) acrylate compound having a molecular weight of 300 or less examples include diethylene glycol di (meth) acrylate, dipropylene glycol di (meth) acrylate, tripropylene glycol diacrylate, 1,6-hexanediol di- Examples thereof include (meth) acrylate, 2- (2′-vinyloxyethoxy) ethyl (meth) acrylate, 1,4-butanediol diacrylate, and the like.
- the trade name “EB-220” (manufactured by Daicel Cytec), the trade name “UN-3320HC” (manufactured by Negami Kogyo), and the trade name “UN-3320HA” (Negami) Industrial name
- trade name “UV-7600B” (manufactured by Nippon Synthetic Chemical Co., Ltd.)
- trade name “UV-7640B” (manufactured by Nippon Synthetic Chemical Co., Ltd.)
- photopolymerization initiator (B) those generally known can be used. Specifically, benzoin, benzophenone, benzoin ethyl ether, benzoin isopropyl ether, 2,2-dimethoxy-2-phenylacetophenone, 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenylpropane-1- ON, azobisisobutyronitrile, benzoyl peroxide and the like.
- thermosetting resin paint examples include compositions in which (i), (ii), and (iii) are blended.
- (I) Organotrialkoxysilane represented by the formula “R 1 Si (OR 2 ) 3 ” (wherein R 1 represents a substituted or unsubstituted monovalent hydrocarbon group, and R 2 represents an alkyl group).
- composition comprising 50 to 100 parts by weight of a colloidal silica (D) solution having a silicic acid content of 10 to 50% by weight and a particle size of 4 to 20 nm; 98 parts by weight (iii) amine carboxylate and / or quaternary ammonium carboxylate (E); 1.0 to 5.0 parts by weight
- R 1 in the organotrialkoxysilane (C) is preferably a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms, such as a methyl group, ethyl group, n-propyl group, n Alkyl groups such as -butyl group, i-butyl group, sec-butyl group, n-hexyl group, n-heptyl group, other ⁇ -chloropropyl group, vinyl group, 3,3,3-trifluoropropyl group, ⁇ -Glycidoxypropyl group, ⁇ -methacryloxypropyl group, ⁇ -mercaptopropyl group, phenyl group, 3,4-epoxycyclohexylethyl group and the like.
- a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms such as a methyl group, ethyl group, n-propyl group,
- R 2 in the organotrialkoxysilane (C) is an alkyl group having 1 to 5 carbon atoms, for example, methyl group, ethyl group, n-propyl group, n-butyl group, i-butyl group, sec- Examples thereof include a butyl group and a tert-butyl group.
- organotrialkoxysilanes (C) include tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, i-propyltrimethoxysilane, i-propyltriethoxysilane, ⁇ -chloropropyltrimethoxysilane, ⁇ -chloropropyltriethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, 3,3 , 3-trifluoropropyltrimethoxysilane, 3,3,3-trifluoropropyltriethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -g
- the colloidal silica (D) constituting the composition contains 10 to 50% by weight of silicic anhydride, and the average particle size of the colloidal silica is 4 to 20 nm.
- a colloidal silica (D) dispersant includes water or an organic solvent, and further a hydrophilic organic solvent (for example, lower aliphatic alcohols such as methanol, ethanol, isopropanol, n-butanol, isobutanol; ethylene glycol, ethylene A mixed solvent of at least one of ethylene glycol derivatives such as glycol monobutyl ether and ethylene glycol monoethyl ether; diethylene glycol derivatives such as diethylene glycol and diethylene glycol monobutyl ether; diacetone alcohol and the like) and water can be used.
- aqueous solvents water or a water-methanol mixed solvent is preferable in view of dispersion stability and drying property of the dispersion medium after coating.
- Examples of products in which colloidal silica is dispersed in a basic aqueous solution include trade names “Snowtex 30” and “Snowtex 40” (both manufactured by Nissan Chemical Industries, Ltd.), trade names “Cataloid S30”, and “Cataloid S40”. (All manufactured by Catalytic Chemical Industry Co., Ltd.), trade name “Snowtex O” (manufactured by Nissan Chemical Industries, Ltd.) as a product dispersed in an acidic aqueous solution, and trade name “Product” as a product dispersed in an organic solvent.
- MA-ST, IPA-ST, NBA-ST, IBA-ST, EG-ST, XBA-ST, NPC-ST, DMAC-ST all Nissan Chemical Industry Co., Ltd.).
- Examples of amine carboxylate and / or quaternary ammonium carboxylate (E) include dimethylamine acetate, ethanolamine acetate, dimethylaniline formate, tetraethylammonium benzoate, trimethylbenzylammonium acetate, tetramethylammonium acetate, tetra-n-butyl. Examples include ammonium acetate, tetraethylammonium acetate, and 2-hydroxyethyltrimethylammonium acetate.
- 1,9-nonanediol diacrylate (b1) is 20 to 60% by weight, and is copolymerized with the above (b1).
- UV curable type obtained by adding 1 to 10 parts by weight of photopolymerization initiator (G) to 100 parts by weight of photopolymerizable composition (F) comprising 40 to 80% by weight of other possible compound (b2)
- a resin coating composition may be mentioned.
- a bifunctional or higher polyfunctional (meth) acrylate monomer and a bifunctional or higher polyfunctional urethane (meth) acrylate oligomer hereinafter referred to as polyfunctional urethane (meth)
- Polyfunctional polyester (meth) acrylate oligomer hereinafter referred to as polyfunctional polyester (meth) acrylate oligomer
- bifunctional or higher functional epoxy (meth) acrylate oligomer hereinafter referred to as polyfunctional epoxy (hereinafter referred to as polyfunctional epoxy) (Meth) acrylate oligomers).
- polyfunctional epoxy hereinafter referred to as polyfunctional epoxy
- One or more (meth) acrylate monomers and oligomers can be used.
- polyfunctional (meth) acrylate monomer examples include monomers having two or more (meth) acryloyloxy groups in the molecule.
- Bifunctional (meth) acrylate monomers include alkylene glycol di (meth) acrylates, polyoxyalkylene glycol di (meth) acrylates, halogen-substituted alkylene glycol di (meth) acrylates, di (meth) acrylates of fatty acid polyols, Typical examples include di (meth) acrylates of bisphenol A or bisphenol F alkylene oxide adducts and epoxy di (meth) acrylates of bisphenol A or bisphenol F, but not limited thereto. Can be used.
- bifunctional (meth) acrylate monomer examples include 2-n-butyl-2-ethyl-1,3-propanediol diacrylate, tripropylene glycol diacrylate, tetraethylene glycol diacrylate, and polyethylene glycol di (meth) acrylate.
- tri- or higher functional (meth) acrylate monomer examples include trimethylolpropane trimethacrylate, trimethylolpropane ethylene oxide adduct triacrylate, glycerin propylene oxide adduct triacrylate, pentaerythritol tetraacrylate and the like.
- Examples of the polyfunctional urethane (meth) acrylate oligomer include a urethanation reaction product of a polyisocyanate with a (meth) acrylate monomer having at least one (meth) acryloyloxy group and a hydroxyl group in one molecule.
- a urethanation reaction product of a polyisocyanate with a (meth) acrylate monomer having at least one (meth) acryloyloxy group and a hydroxyl group in one molecule As the polyfunctional urethane (meth) acrylate oligomer, an isocyanate compound obtained by reacting polyols with polyisocyanate, and a (meth) acrylate monomer having at least one (meth) acryloyloxy group and hydroxyl group in one molecule; The urethanization reaction product of is mentioned.
- Examples of the (meth) acrylate monomer having at least one (meth) acryloyloxy group and hydroxyl group in one molecule used for the urethanization reaction include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 2-hydroxy-3-phenoxypropyl (meth) acrylate, glycerin di (meth) acrylate, trimethylolpropane di (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol penta (Meth) acrylate is mentioned.
- Polyisocyanates used in the urethanization reaction include hexamethylene diisocyanate, lysine diisocyanate, isophorone diisocyanate, dicyclohexylmethane diisocyanate, tolylene diisocyanate, xylylene diisocyanate, and diisocyanates obtained by hydrogenating aromatic isocyanates among these diisocyanates.
- diisocyanates such as hydrogenated tolylene diisocyanate and hydrogenated xylylene diisocyanate
- di- or tri-polyisocyanates such as triphenylmethane triisocyanate and dimethylene triphenyl triisocyanate
- polyols used in the urethanization reaction generally, in addition to aromatic, aliphatic and alicyclic polyols, polyester polyols, polyether polyols and the like are used.
- aliphatic and alicyclic polyols include 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, ethylene glycol, propylene glycol, trimethylol ethane, trimethylol propane, dimethylol heptane, diethylene
- examples include methylol propionic acid, dimethylol butyric acid, glycerin, and hydrogenated bisphenol A.
- the polyester polyol is obtained by a dehydration condensation reaction between the above polyols and a polybasic carboxylic acid (anhydride).
- polybasic carboxylic acids include (anhydrous) succinic acid, adipic acid, (anhydrous) maleic acid, (anhydrous) trimellitic acid, hexahydro (anhydrous) phthalic acid, (anhydrous) phthalic acid, isophthalic acid, Examples include terephthalic acid.
- the polyether polyol includes a polyoxyalkylene-modified polyol obtained by a reaction of the polyol or phenols with an alkylene oxide.
- the polyfunctional polyester (meth) acrylate oligomer can be obtained by a dehydration condensation reaction of (meth) acrylic acid, polybasic carboxylic acid (anhydride) and polyol.
- Polybasic carboxylic acids (anhydrides) used in the dehydration condensation reaction include (anhydrous) succinic acid, adipic acid, (anhydrous) maleic acid, (anhydrous) itaconic acid, (anhydrous) trimellitic acid, and (anhydrous) pyromellitic. Acid, hexahydro (anhydrous) phthalic acid, (anhydrous) phthalic acid, isophthalic acid, terephthalic acid, etc. are mentioned.
- the polyol used in the dehydration condensation reaction is 1,4-butanediol, 1,6-hexanediol, diethylene glycol, triethylene glycol, propylene glycol, neopentyl glycol, dimethylol heptane, dimethylol propionic acid, dimethylol butyrate.
- Examples include phosphonic acid, trimethylolpropane, ditrimethylolpropane, pentaerythritol, dipentaerythritol and the like.
- the polyfunctional epoxy (meth) acrylate oligomer is obtained by an addition reaction between polyglycidyl ether and (meth) acrylic acid.
- the polyglycidyl ether include ethylene glycol diglycidyl ether, propylene glycol diglycidyl ether, tripropylene glycol diglycidyl ether, 1,6-hexanediol diglycidyl ether, and bisphenol A diglycidyl ether.
- photopolymerization initiator used in the present invention those generally known can be used. Specifically, benzoin, benzophenone, benzoin ethyl ether, benzoin isopropyl ether, 2,2-dimethoxy-2-phenylacetophenone, 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenylpropane-1- ON, azobisisobutyronitrile, benzoyl peroxide, and the like, but are not limited thereto.
- the method for applying a paint on the acrylic resin composition layer and the polycarbonate resin layer not coextruded according to the present invention includes brush, roll, dipping, flow coating, spray, roll coater, flow coater, and JP-A-2004-130540.
- the method proposed in the above can be applied.
- the thickness of the hard coat layer cured by heat curing or active energy rays is 1 to 20 ⁇ m, preferably 2 to 15 ⁇ m, more preferably 3 to 12 ⁇ m. If the thickness of the hard coat layer is less than 1 ⁇ m, the effect of improving the surface hardness tends to be insufficient. Conversely, if the thickness exceeds 20 ⁇ m, the effect of improving the surface hardness is difficult to improve, which is disadvantageous in terms of cost. It may cause a drop in impact properties.
- the hard coat on the surface on which the acrylic resin is not laminated at 20 to 120 ⁇ m, that is, the inner surface when used as a product is free from cracks under a stress of 20 MPa.
- cracks are generated with a stress of 20 MPa or less, cracks may be generated on the inner surface when used as a product, which may be unusable.
- An antireflection layer can be provided on the hard coat.
- As the antireflection layer a layer in which a high refractive index layer and a low refractive index layer are laminated in two or more layers so that the low refractive index layer is the outermost surface is preferable.
- the material constituting the high refractive index layer is not particularly limited, and examples thereof include metal oxides such as TiO 2 , Y 2 O 3 , La 2 O 3 , ZrO 2 , and Al 2 O 3 .
- the material for forming the low refractive index layer for example, include SiO 2, MgF 2, LiF, 3NaF ⁇ AIF 3, AIF 3, Na 3 AIF metal oxides such as 6 or metal fluoride It is done.
- the thickness of the anti-reflection layer is often used in a range where the lower limit is 10 nm and the upper limit is 300 nm, although it depends on the design of the anti-reflection layer.
- the method for forming the anti-reflection layer on the hard coat layer is not particularly limited, and known methods such as sputtering, vapor deposition, plasma CVD, and coating can be used.
- the acrylic resin composition of the present invention can be a multilayer laminate with a polycarbonate resin.
- the acrylic resin composition layer of the present invention is provided on one side or both sides of the polycarbonate resin layer.
- Such a polycarbonate resin laminate is preferably produced by multilayer molding by coextrusion of the acrylic resin composition of the present invention and a polycarbonate resin.
- the thickness of the acrylic resin composition layer (skin layer) in the polycarbonate resin laminate is preferably 10 to 100 ⁇ m, more preferably 15 to 80 ⁇ m, and still more preferably 20 to 70 ⁇ m. If the thickness is less than 10 ⁇ m, the transparency and appearance are impaired due to the disturbance of the laminated interface. If the thickness exceeds 100 ⁇ m, the impact resistance of the polycarbonate resin layer may be significantly reduced, and further, it is disadvantageous in terms of economy.
- the polycarbonate resin that can be used as the base material of the multilayer sheet (polycarbonate resin laminate) of the present invention is not particularly limited as long as it can be obtained by a known production method of the polycarbonate resin described above. What reacted with the monohydric phenol (bisphenol) is mentioned.
- Bisphenols include 4,4′-biphenyldiol, bis (4-hydroxyphenyl) methane, bis (4-hydroxyphenyl) ether, bis (4-hydroxyphenyl) sulfone, bis (4-hydroxy-3-methylphenyl) ) Sulfone, bis (4-hydroxyphenyl) sulfoxide, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) ketone, 1,1-bis (4-hydroxyphenyl) ethane, 2,2-bis (4 -Hydroxyphenyl) propane (bisphenol A; BPA), 2,2-bis (4-hydroxy-3-t-butylphenyl) propane, 2,2-bis (4-hydroxyphenyl) butane, 1,1-bis ( 4-hydroxyphenyl) cyclohexane, 2,2-bis (4-hydroxy-3- Tilphenyl) propane, 2,2-bis (4-hydroxy-3,5-dimethylphenyl) propane, 1,1-bis (4-hydroxyphenyl) -1-
- the molecular weight of the polycarbonate resin that is the base material of the multilayer laminate (polycarbonate resin laminate) of the present invention is usually that having a viscosity average molecular weight of 15,000 to 40,000, more preferably 18,000 to 30,000. is there.
- Various commonly used additives may be added to the polycarbonate resin. Examples of the additive include an ultraviolet absorber, an antioxidant, a coloring inhibitor, a flame retardant, and a coloring agent.
- the thickness of the polycarbonate resin layer is preferably 0.04 to 2.0 mm for applications related to the present invention where thinness, weight reduction, punching workability and the like are required. If the thickness of the polycarbonate resin layer is less than 0.04 mm, the minimum strength required for molding is insufficient, and thus it is difficult to produce a polycarbonate resin laminate by coextrusion. When the thickness exceeds 2.0 mm, an acrylic resin composition using a conventional lubricant can be provided with sufficient roll peelability by optimizing molding conditions. Therefore, the acrylic resin composition of the present invention is necessary. The nature becomes less. As a matter of course, the acrylic resin composition of the present invention can be used even when the thickness exceeds 2.0 mm.
- the polymerization liquid is separated into an aqueous phase and an organic phase, the organic phase is neutralized with phosphoric acid, and after washing with water until the pH of the washing liquid becomes neutral, the organic layer is dropped into warm water at 60 ° C., The polymer was precipitated. The precipitate was filtered and dried to obtain a powdery polymer.
- This polymer had an intrinsic viscosity [ ⁇ ] at a temperature of 20 ° C. of 0.42 [dl / g] of a solution having a concentration of 0.5 g / dl using methylene chloride as a solvent.
- Synthesis Example 7 The same procedure as in Synthesis Example 1 was performed except that 775 g of BPA and 137 g of 4,4′-biphenyldiol (Honshu Chemical Industry Co., Ltd.) were used instead of 912 g of BPA.
- the intrinsic viscosity [ ⁇ ] of the obtained polymer was 0.42 [dl / g]. From the infrared absorption spectrum analysis and the fluorescent X-ray analysis, this polymer was determined to be a polycarbonate polymer having the following structure. The proportion of the terminal Si element in the polymer was 13.3% by weight with respect to the total amount of the polymer.
- Synthesis Example 8 The same procedure as in Synthesis Example 1 was conducted except that BPA 638 g and bis (4-hydroxyphenyl) methane (manufactured by Sanko Co., Ltd.) 274 g were used instead of BPA 912 g.
- the intrinsic viscosity [ ⁇ ] of the obtained polymer was 0.42 [dl / g]. From the infrared absorption spectrum analysis and the fluorescent X-ray analysis, this polymer was determined to be a polycarbonate polymer having the following structure. The proportion of the terminal Si element in the polymer was 13.3% by weight with respect to the total amount of the polymer.
- Roll dirt evaluation The degree of lubricant accumulation on the roll No. 1 was visually evaluated.
- ⁇ No sheet appearance defect due to roll contamination occurred during the production of a multilayer sheet for 8 hours.
- ⁇ No sheet appearance defect due to roll dirt occurred during the production of the multilayer sheet for 1 hour, and no sheet appearance defect due to roll dirt occurred during the production of the multilayer sheet for 8 hours.
- X A sheet appearance defect due to roll contamination occurred during the production of the multilayer sheet for 1 hour.
- Peelability evaluation The stability of the peel position on the No. 3 polishing roll when continuously molded for 8 hours was evaluated. ⁇ : Very stable, and there is no change in the peeling position even after continuous molding for 8 hours. (Triangle
- Lubricant SPC1 Terminal silicone-modified polycarbonate SPC2 of Synthesis Example 1: Terminal silicone-modified polycarbonate SPC3 of Synthesis Example 2: Terminal silicone-modified polycarbonate SPC4 of Synthesis Example 3: Terminal silicone-modified polycarbonate SPC5 of Synthesis Example 4: Terminal of Synthesis Example 5 Silicone-modified polycarbonate SPC6: Terminal silicone-modified polycarbonate SPC7 of Synthesis Example 6: Terminal silicone-modified polycarbonate SPC8 of Synthesis Example 7: Terminal silicone-modified polycarbonate SPC9 of Synthesis Example 8: Terminal silicone-modified polycarbonate SPC10 of Synthesis Example 9: Main of Synthesis Example 10 Chain silicone-modified polycarbonate lubricant A: ethylenebisstearic acid amide (manufactured by Kyoeisha Chemical Co., Ltd., trade name: Light Amide WEF).
- Lubricant B Stearic acid monoglyceride: (Kishida Chemical Co., Ltd.)
- Lubricant C Silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., trade name KF-96-30cs)
- Lubricant D Stearyl alcohol (Wako Pure Chemical Industries, Ltd.)
- the temperature inside the die head is 260 ° C., and the resin laminated and integrated in the die is guided to three mirror-finished polishing rolls arranged horizontally, the first roll temperature 110 ° C., the second roll temperature 140 ° C., 3
- the number roll temperature was set to 180 ° C.
- the second and third rolls were passed.
- the take-up speed of the first roll and the second roll was 2.5 m / min
- the take-up speed of the third roll was 2.6 m / min
- the take-up pinch roll speed was 2.7 m / min.
- the obtained multilayer sheet had a thickness of 0.5 mm, and the coating layer made of the acrylic resin composition had a thickness of 20 ⁇ m on both sides.
- Table 1 shows the blending ratio of the lubricants blended in the acrylic resin compositions of Examples 1 to 11 and Comparative Examples 1 to 7. From Table 1, it is clear that the acrylic resin composition / polycarbonate resin multilayer sheet of the present invention is excellent in peelability, high-temperature and high-humidity resistance, and surface slipperiness.
- Examples 12 to 13 and Comparative Examples 8 to 9 99 parts by weight of methyl methacrylate (Mitsubishi Gas Chemical Co., Ltd.), 0.5 parts by weight of pentaerythritol tetraacrylate (Daicel Cytec Co., Ltd.), 2-methyl-1 [4- (methylthio) phenyl] -2-mori
- the molded product made of the acrylic resin composition of the present invention is not easily whitened even in a high-temperature and high-humidity environment, and can maintain good slipperiness.
- the roll peelability of the acrylic resin layer is improved and the roll deposits are remarkably reduced, so there is no whitening in a high temperature and high humidity environment, A multilayer laminate having excellent productivity and environmental stability that can maintain good appearance and slipperiness can be obtained. Therefore, the multilayer laminate obtained in this manner is suitable for fields requiring scratch resistance and impact resistance, such as various window glass materials, optical members, LCD and EL display protective sheets.
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Abstract
Description
3)前記末端変性ポリカーボネート樹脂の極限粘度が0.05~1.5dl/gである、1)又は2)記載のアクリル樹脂組成物。
5)前記一般式(1)中のR1が、炭素数1~6のアルキレン基である、1)~4)のいずれかに記載のアクリル樹脂組成物。
7)前記末端変性ポリカーボネート樹脂が、下記一般式(2)で表される繰り返し単位を有するものである、1)~6)のいずれかに記載のアクリル樹脂組成物。
10)前記アクリル樹脂がアクリル酸類、アクリレート類、及びメタクリレート類からなる群から選択されるアクリル系モノマーを主成分とするモノマーから誘導されたものである、1)~9)のいずれかに記載のアクリル樹脂組成物。
12)さらに脂肪酸アミド及び/または高級アルコールが配合されていることを特徴とする、1)~11)のいずれかに記載のアクリル樹脂組成物。
14)フィルムまたはシート状成形物である、13)記載の成形物。
18)1)~12)のいずれかに記載のアクリル樹脂組成物を製造する方法であって、アクリル系モノマーと下記一般式(1)で表される末端基を有する末端変性ポリカーボネート樹脂とを混合した後、熱または光によって前記アクリル系モノマーを重合させる工程を含むことを特徴とする、アクリル樹脂組成物の製造方法。
したがって、かかる末端変性ポリカーボネート樹脂を配合したアクリル樹脂組成物は、滑剤の揮散や多量使用によるロール汚れ(ロールへの滑剤の蓄積)や滑り性の低下を伴うことなく、優れたロール剥離性を発揮することができ、このアクリル樹脂組成物からなる成形物は、高温高湿環境下でも白化しにくく、かつ良好な滑り性を保持することができる。
本発明の樹脂組成物の主成分であるアクリル樹脂は、主にアクリル系モノマー(単量体)からなる樹脂であれば特に限定されない。具体的には、(メタ)アクリル酸類、(メタ)アクリレート類、(メタ)アクリルアミド類等のアクリル系モノマーが挙げられる。
これらのアクリル系モノマーは単独で用いても複数同時に用いてもよい。中でも、メチルメタアクリレートが好ましい。
本発明で用いられる末端変性ポリカーボネート樹脂は、下記一般式(1)で表される末端ポリシロキサン構造を持つものである。
Xは下記式で表される二価の有機基からなる群から選択される基である。
末端変性ポリカーボネート樹脂の平均分子量は特に限定されないが、好ましくは、極限粘度[η]が0.05~1.5[dl/g]の範囲のものが望ましい。極限粘度がこの範囲内であれば、アクリル樹脂と容易に混合添加でき、取り扱いやすい。極限粘度から粘度平均分子量(Mv)への換算は、極限粘度[η]=1.23×10-4Mv0.83で換算することが可能である。
本発明のアクリル樹脂組成物は、アクリル樹脂に末端変性ポリカーボネート樹脂を配合してなるものである。末端変性ポリカーボネート樹脂の配合量は、0.1~10重量%が好適である。さらに、他樹脂と共押出成形する際の成形ロール剥離性の改善には、0.5~5重量%が好ましい。添加量が0.1重量%未満の場合、剥離性や表面改質効果は不十分となり、10重量%を超えて配合した場合、透明性や外観が劣化する場合がある。
本発明のアクリル樹脂組成物の製造方法としては、アクリル樹脂の単量体(アクリル系モノマー)に本発明の末端変性ポリカーボネート樹脂を混合したのち、該アクリル系モノマーを重合してアクリル樹脂とする方法と、アクリル樹脂に末端変性ポリカーボネート樹脂を添加する方法とが挙げられる。
本発明の成形物は、上述した本発明のアクリル樹脂組成物を成形して得られるものである。成形物を得るための成形方法は特に限定されず、湿式成形、圧縮成形、真空圧縮成形、押出成形、射出成形、インフレーション成形等を採用することができる。
押出成形や射出成形によって得られるアクリル樹脂組成物単独の成形物、あるいは単層のフィルム又はシート状成形物の場合、該成形物の厚みは用途に応じて適宜設定することができるが、0.1mm~2cm程度が好ましい。
なお、本発明の成形物としては、上述したフィルム又はシート状成形物以外では、例えば射出成形物、圧縮成形物、真空圧縮成形物、インフレーション成形物、注型成形物等が挙げられる
本発明のアクリル樹脂組成物は、他の樹脂と組み合わせて多層積層体を形成することができる。すなわち、本発明の多層積層体は、上述した本発明のアクリル樹脂組成物からなる層を少なくとも含むことを特徴とする。
多層シートの製造に用いられる押出装置としては、基板層を構成するポリカーボネート樹脂を押出す一つのメイン押出機と、基板層の片面あるいは両面を被覆するアクリル樹脂組成物を押出す1台または2台のサブ押出機により構成され、通常サブ押出機はメイン押出機より小型のものが採用される。
(i)式「R1Si(OR2)3」(式中、R1は置換基または非置換の一価の炭化水素基、R2はアルキル基を表す。)で示されるオルガノトリアルコキシシラン(C);1~98重量部
(ii)無水ケイ酸含有量が10~50重量%で、粒径が4~20nmのコロイダルシリカ(D)溶液50~100重量部からなる組成物;1~98重量部
(iii)アミンカルボキシレート及び/又は第4級アンモニウムカルボキシレート(E);1.0~5.0重量部
また、前記オルガノトリアルコキシシラン(C)中のR2は、炭素数1~5のアルキル基あり、例えばメチル基、エチル基、n-プロピル基、n-ブチル基、i-ブチル基、sec-ブチル基、tert-ブチル基などが挙げられる。
2官能(メタ)アクリレートモノマーとしては、アルキレングリコールジ(メタ)アクリレート類、ポリオキシアルキレングリコールジ(メタ)アクリレート類、ハロゲン置換アルキレングリコールジ(メタ)アクリレート類、脂肪酸ポリオールのジ(メタ)アクリレート、ビスフェノールAまたはビスフェノールFのアルキレンオキシド付加物ジ(メタ)アクリレート類、ビスフェノールAまたはビスフェノールFのエポキシジ(メタ)アクリレート類等が代表的なものであるが、これらに限定されるものではなく種々のものが使用できる。
20MPa以下の応力でクラックが発生すると製品として使用したときに内面にクラックが発生し、使用に耐えないことがある。
また、低屈折率層を形成する材料としては特に限定されず、例えば、SiO2、MgF2、LiF、3NaF・AIF3、AIF3、Na3AIF6等の金属酸化物又は金属フッ化物が挙げられる。
本発明のアクリル樹脂組成物は、ポリカーボネート樹脂との多層積層体とすることができる。かかる多層積層体(ポリカーボネート樹脂積層体)においては、本発明のアクリル樹脂組成物層は、ポリカーボネート樹脂層の片面又は両面に設けられる。
特開平7―258398号の実施例1と同様に末端変性ポリカーボネート樹脂を合成した。具体的には、8.0%(w/w%)の水酸化ナトリウム水溶液8リットルに、2,2-ビス(4-ヒドロキシフェニル)プロパン(以下BPAと略称:三井化学株式会社製)912gとハイドロサルファイト5gを加え溶解した。これに、メチレンクロライド3.6リットルを加え攪拌し、溶液温度を15℃に保ちつつ、ホスゲン500gを60分かけて吹き込んだ。吹き込み終了後、下記構造
この重合体は、塩化メチレンを溶媒とする濃度0.5g/dlの溶液の温度20℃における極限粘度[η]が0.42[dl/g]であった。
合成例1のポリシロキサン一価フェノールの代わりに、下記構造
BPA912gの代わりに、BPA912gと下記構造の
S2を304gに変更し、下記構造の
BPAを1,1-ビス(4-ヒドロキシフェニル)シクロヘキサン(本州化学工業株式会社製)に変更した以外は合成例1と同様に行った。得られた重合体の極限粘度[η]は0.40[dl/g]であった。赤外吸収スペクトル分析および蛍光X線分析より、この重合体は、下記構造を有するポリカーボネート重合体と判断された。なお、この重合体中の末端Si元素分の割合は、重合体全量に対し13.5重量%であった。
BPAを2,2-ビス(4-ヒドロキシ-3-メチルフェニル)プロパン(株式会社エーピーアイコーポレーション製)に変更した以外は合成例1と同様に行った。得られた重合体の極限粘度[η]は0.43[dl/g]であった。赤外吸収スペクトル分析および蛍光X線分析より、この重合体は、下記構造を有するポリカーボネート重合体と判断された。なお、この重合体中の末端Si元素分の割合は、重合体全量に対し13.5重量%であった。
BPA912gの代わりに、BPA775gと4,4’-ビフェニルジオール(本州化学工業株式会社製)137gに変更した以外は合成例1と同様に行った。得られた重合体の極限粘度[η]は0.42[dl/g]であった。赤外吸収スペクトル分析および蛍光X線分析より、この重合体は、下記構造を有するポリカーボネート重合体と判断された。なお、この重合体中の末端Si元素分の割合は、重合体全量に対し13.3重量%であった。
BPA912gの代わりに、BPA638gとビス(4-ヒドロキシフェニル)メタン(三光株式会社製)274gに変更した以外は合成例1と同様に行った。得られた重合体の極限粘度[η]は0.42[dl/g]であった。赤外吸収スペクトル分析および蛍光X線分析より、この重合体は、下記構造を有するポリカーボネート重合体と判断された。なお、この重合体中の末端Si元素分の割合は、重合体全量に対し13.3重量%であった。
合成例1のポリシロキサン一価フェノールの代わりに、下記構造
α,ω-ビス[3-(o-ヒドロキシフェニル)プロピル]ポリジメチルシロキサンを608g、S1の代わりにp-t-ブチルフェノール28g(大日本インキ化学工業株式会社製)用いた以外は、合成例3と同様に行った。得られた重合体の極限粘度[η]は0.43[dl/g]であった。赤外吸収スペクトル分析および蛍光X線分析より、この重合体は下記構造を有するポリカーボネート重合体と判断された。なお、この重合体中のSi元素分の割合は、重合体全量に対し11.9重量%であった。
○:8時間多層シートを製造中にロール汚れによるシート外観不良が発生せず。
△:1時間多層シートを製造中にロール汚れによるシート外観不良が発生せず、かつ
8時間多層シートを製造中にロール汚れによるシート外観不良が発生した。
×:1時間多層シートを製造中にロール汚れによるシート外観不良が発生した。
実施例、比較例で得られたシートを80℃、85%RH下で、200時間保持した場合のアクリル層の白濁度合いを厚み方向から目視で判定した。
○:白濁観察できず。
△:わずかに白濁が認められる。
×:明らかに白濁が確認できる。
○:非常に安定しており、8時間連続成形しても剥離位置に変化がない。
△:8時間連続成形すると剥離位置が下がり不安定となるため、剥離位置の変動に起因する外観不良(剥離マーク)が発生した。
×:8時間連続成形中に剥離位置が下がり、シートが第3ポリッシングロールに巻きつ
いて停止した。
SPC1:合成例1の末端シリコーン変性ポリカーボネート
SPC2:合成例2の末端シリコーン変性ポリカーボネート
SPC3:合成例3の末端シリコーン変性ポリカーボネート
SPC4:合成例4の末端シリコーン変性ポリカーボネート
SPC5:合成例5の末端シリコーン変性ポリカーボネート
SPC6:合成例6の末端シリコーン変性ポリカーボネート
SPC7:合成例7の末端シリコーン変性ポリカーボネート
SPC8:合成例8の末端シリコーン変性ポリカーボネート
SPC9:合成例9の末端シリコーン変性ポリカーボネート
SPC10:合成例10の主鎖シリコーン変性ポリカーボネート
滑剤A:エチレンビスステアリン酸アミド(共栄社化学(株)製、商品名:ライトアマイドWEF)。
滑剤B:ステアリン酸モノグリセライド:(キシダ化学(株)製)
滑剤C:シリコーンオイル(信越化学工業株式会社製、商品名KF-96-30cs)
滑剤D:ステアリルアルコール(和光純薬工業株式会社製)
三菱ガス化学社製、商品名「ユーピロンE-2000」(粘度平均分子量;27,000、ビスフェノール類の種類;ビスフェノールA、なお「ユーピロン」は登録商標)を使用した。
ポリメチルメタクリレート(アルケマ社製、商品名「Altuglas V020」;重量平均分子量=100,000)を使用した。また、滑剤とアクリル樹脂は押出前にブレンドしたものを用いた。
ポリカーボネート樹脂用押出機は、バレル直径65mm、スクリュウのL/D=35で、シリンダー温度270℃に設定した。また、ポリカーボネート樹脂の両面に被覆層を形成するためのアクリル樹脂組成物用押出機は、バレル直径32mm、スクリュウのL/D=32で、シリンダー温度250℃に設定した。2種類の樹脂を同時に溶融押出し、積層する際にはフィードブロックを使用し、ポリカーボネート樹脂の両面にアクリル樹脂組成物からなる被覆層を積層した。
メタクリル酸メチル(三菱ガス化学株式会社製)99重量部、ペンタエリスリトールテトラアクリレート(ダイセル・サイテック株式会社製)0.5重量部、2-メチル-1[4-(メチルチオ)フェニル]-2-モリフォリノプロパン-1-オン(イルガキュア907:チバスペシャリティーケミカルズ株式会社製)0.5重量部を混ぜた混合液に、さらに本発明中の滑剤を添加した混合液を、0.5mm厚(縦30cm×横30cm)のポリカーボネート樹脂シート(三菱ガス化学株式会社製)の表面に、バーコーターにて約20μm厚(縦20cm×横20cm)で塗布した。塗布後、表面を80W/cmの照射エネルギーを持つメタルハライドランプ(MAL-250NL;日本電池株式会社製)でUV照射を30秒間行い、硬化させた。なお実施例12~13と比較例8~9のメタクリル酸メチル混合液に配合した滑剤の配合率は表2に示した。表2から、本発明のアクリル樹脂組成物/ポリカーボネート樹脂多層シートは表面滑り性、撥水性に優れていることが明らかである。
Claims (20)
- 前記末端変性ポリカーボネート樹脂の含有量が0.1~10重量%である、請求項1記載のアクリル樹脂組成物。
- 前記末端変性ポリカーボネート樹脂の極限粘度が0.05~1.5dl/gである、請求項1又は2記載のアクリル樹脂組成物。
- 前記一般式(1)中のR2~R6が、水素、メチル基、エチル基、ブチル基及びフェニル基である、請求項1~3のいずれかに記載のアクリル樹脂組成物。
- 前記一般式(1)中のR1が、炭素数1~6のアルキレン基である、請求項1~4のいずれかに記載のアクリル樹脂組成物。
- 前記一般式(1)中のaが4~100である、請求項1~5のいずれかに記載のアクリル樹脂組成物。
- 前記末端変性ポリカーボネート樹脂が、下記一般式(2)で表される繰り返し単位を有するものである、請求項1~6のいずれかに記載のアクリル樹脂組成物。
- 前記一般式(2)で表される繰り返し単位が、2,2-ビス(4-ヒドロキシフェニル)プロパン、1,1-ビス(4-ヒドロキシフェニル)シクロヘキサン、2,2-ビス(4-ヒドロキシ-3-メチルフェニル)プロパン、ビス(4-ヒドロキシフェニル)メタン、4,4’-ビフェニルジオール、又はα,ω-ビス[3-(o-ヒドロキシフェニル)プロピル]ポリジメチルシロキサンから誘導されたものである、請求項7記載のアクリル樹脂組成物。
- 前記一般式(2)で表される繰り返し単位の平均重合度が7~200である、請求項7又は8記載のアクリル樹脂組成物。
- 前記アクリル樹脂がアクリル酸類、アクリレート類、及びメタクリレート類からなる群から選択されるアクリル系モノマーを主成分とするモノマーから誘導されたものである、請求項1~9のいずれかに記載のアクリル樹脂組成物。
- 前記アクリル樹脂がポリメチルメタクリレート共重合体である、請求項10記載のアクリル樹脂組成物。
- さらに脂肪酸アミド及び/または高級アルコールが配合されていることを特徴とする、請求項1~11のいずれかに記載のアクリル樹脂組成物。
- 請求項1~12のいずれかに記載のアクリル樹脂組成物を成形して得られる成形物。
- フィルムまたはシート状成形物である、請求項13記載の成形物。
- 請求項1~12のいずれかに記載のアクリル樹脂組成物からなる層と、他の樹脂からなる層とを少なくとも含むことを特徴とする、多層積層体。
- 前記他の樹脂としてポリカーボネート樹脂を用い、前記アクリル樹脂組成物からなる層が該ポリカーボネート樹脂からなる層の片面又は両面に積層されたポリカーボネート樹脂積層体であることを特徴とする、請求項15記載の多層積層体。
- さらに、ハードコート層を含むことを特徴とする、請求項15又は16記載の多層積層体。
- 請求項1~12のいずれかに記載のアクリル樹脂組成物を製造する方法であって、アクリル系モノマーと下記一般式(1)で表される末端基を有する末端変性ポリカーボネート樹脂とを混合した後、熱または光によって前記アクリル系モノマーを重合させる工程を含むことを特徴とする、アクリル樹脂組成物の製造方法。
- 請求項1~12のいずれかに記載のアクリル樹脂組成物からなる層と、他の樹脂層とを少なくとも含む多層積層体の製造方法であって、前記他の樹脂層を形成する樹脂とアクリル樹脂組成物とを共押出成形することを特徴とする、多層積層体の製造方法。
- 請求項1~12のいずれかに記載のアクリル樹脂組成物からなる層と、他の樹脂からなる層とを少なくとも含む多層積層体の製造方法であって、前記他の樹脂層上に、アクリル系モノマーと下記一般式(1)で表される末端基を有する末端変性ポリカーボネート樹脂との混合物を塗布した後、熱又は光によって前記混合物中のアクリル系モノマーを重合させる工程を含むことを特徴とする、多層積層体の製造方法。
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EP20090722151 EP2275486B1 (en) | 2008-03-17 | 2009-02-23 | Acrylic resin composition and moldings in which said composition is used |
CN2009801096761A CN101983221B (zh) | 2008-03-17 | 2009-02-23 | 丙烯酸类树脂组合物及使用其的成型物 |
KR1020107020788A KR101669475B1 (ko) | 2008-03-17 | 2009-02-23 | 아크릴 수지 조성물 및 이를 사용한 성형물 |
US12/922,518 US20110086227A1 (en) | 2008-03-17 | 2009-02-23 | Acrylic resin composition and moldings in which said composition is used |
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US20130309502A1 (en) | 2013-11-21 |
KR20110007105A (ko) | 2011-01-21 |
EP2275486B1 (en) | 2015-04-01 |
EP2275486A1 (en) | 2011-01-19 |
JP2009221386A (ja) | 2009-10-01 |
CN101983221B (zh) | 2013-05-01 |
KR101669475B1 (ko) | 2016-10-26 |
TW201002775A (en) | 2010-01-16 |
EP2275486A4 (en) | 2011-04-20 |
CN101983221A (zh) | 2011-03-02 |
US9163157B2 (en) | 2015-10-20 |
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US20110086227A1 (en) | 2011-04-14 |
JP5336098B2 (ja) | 2013-11-06 |
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