WO2009151071A1 - フッ素樹脂フィルムおよびフッ素樹脂積層アクリル系樹脂フィルム - Google Patents
フッ素樹脂フィルムおよびフッ素樹脂積層アクリル系樹脂フィルム Download PDFInfo
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- WO2009151071A1 WO2009151071A1 PCT/JP2009/060581 JP2009060581W WO2009151071A1 WO 2009151071 A1 WO2009151071 A1 WO 2009151071A1 JP 2009060581 W JP2009060581 W JP 2009060581W WO 2009151071 A1 WO2009151071 A1 WO 2009151071A1
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- acrylate
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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
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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
- B32B27/06—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
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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
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
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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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
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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
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
- C08L33/16—Homopolymers or copolymers of esters containing halogen atoms
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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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
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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
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/536—Hardness
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
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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
- B32B2605/00—Vehicles
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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
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
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- 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
- C08F220/22—Esters containing halogen
- C08F220/24—Esters containing halogen containing perhaloalkyl radicals
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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
- C08J2333/00—Characterised by the use 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; Derivatives of such polymers
- C08J2333/04—Characterised by the use 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; Derivatives of such polymers esters
- C08J2333/14—Characterised by the use 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; Derivatives of such polymers esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
- C08J2333/16—Homopolymers or copolymers of esters containing halogen atoms
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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
- C08L27/00—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 a halogen; Compositions of derivatives of such polymers
- C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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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
- C08L27/00—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 a halogen; Compositions of derivatives of such polymers
- C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/16—Homopolymers or copolymers or vinylidene fluoride
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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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]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
Definitions
- the present invention relates to a fluororesin film and a fluororesin laminated acrylic resin film formed by laminating the resin.
- a multilayer film in which a fluororesin excellent in weather resistance and chemical resistance and a methacrylic resin composition are coextruded and a surface hard coat treatment with a fluororesin Resin film has a strong interest in the market.
- a method of decorating the surface of a plastic molded product as a coating substitute with a film obtained by laminating a vinylidene fluoride resin that can be melt-molded on an acrylic resin as a fluororesin has attracted attention.
- Patent Document 4 A method of obtaining a vinylidene fluoride resin film excellent in transparency and surface smoothness by sandwiching with a metal roll adjusted to an appropriate temperature has been studied (see Patent Document 4), but the number of processes is increased. In some cases, new equipment or remodeling of existing equipment is required, which is disadvantageous in terms of economy.
- the present invention has an excellent balance of transparency, surface hardness, chemical resistance, and contamination resistance against lactic acid components and sunscreens contained in human sebum / sweat, which can also be used for vehicle interior and exterior member applications.
- An object is to provide a novel monolayer and multilayer film.
- the present inventors have achieved transparency, surface hardness, chemical resistance, by using a fluorine-based (meth) acrylic resin containing a fluorine-containing alkyl (meth) acrylate component, Succeeded in producing a new fluororesin film with excellent contamination resistance. Furthermore, it has been found that a fluororesin film using a fluorine-based (meth) acrylic resin mixed with polyvinylidene fluoride has an excellent heat resistance balance in addition to the above characteristics.
- the present inventors also examined the development of a fluororesin laminated film using the above-mentioned fluoro (meth) acrylic resin.
- a fluororesin containing the above-mentioned fluoro (meth) acrylic resin a laminated film of a fluororesin layer and an acrylic resin layer was easily produced by a general method such as coextrusion molding.
- the obtained fluororesin-laminated acrylic resin film is found to have excellent balance of transparency, surface hardness, chemical resistance, stain resistance, and heat resistance even when it has a fluororesin layer with a thickness of 1 ⁇ m or more. It was.
- the acrylic resin composition that constitutes the acrylic resin layer it is possible to use the fluororesin laminated acrylic resin film as a vehicle interior / exterior application. It has also been found that it has whitening properties and has led to the present invention.
- this invention relates to the fluororesin film formed by shape
- the fluorine-containing alkyl (meth) acrylate polymer component content is preferably 80% by weight or more in 100% by weight of the fluorine-based (meth) acrylic resin (B).
- the fluororesin (C) may contain polyvinylidene fluoride.
- the content of polyvinylidene fluoride is preferably 0.1 to 10 parts by weight with respect to 100 parts by weight of the fluorine-based (meth) acrylic resin (B).
- the melt viscosity of the fluoro (meth) acrylic resin (B) is 300 to 4000 Pa under the conditions of a die temperature of 220 ° C., a shear rate of 122 sec ⁇ 1 , and a capillary die diameter of 1 mm based on JIS K7199. -It is preferable that it is sec.
- the fluororesin laminated acrylic resin film of the present invention is formed by laminating the fluororesin film layer of the present invention on at least one surface of a film layer made of an acrylic resin (A).
- the acrylic resin (A) is composed of 5 to 100% by weight of the acrylic elastic graft copolymer (a-1) and the methacrylic polymer (a-2) 0 to An acrylic resin composition comprising 95% by weight [the total amount of (a-1) and (a-2) is 100% by weight],
- Acrylic elastomer graft copolymer (a-1) contains 50-99.9 wt% of acrylic acid alkyl ester, 0-49.9 wt% of other copolymerizable vinyl monomers, and can be copolymerized
- At least one acrylate ester system obtained by polymerizing a monomer mixture (a-1a) comprising 0.1 to 10% by weight of a polyfunctional monomer having two or more non-conjugated double bonds per molecule
- a monomer mixture (a-1b) comprising 50 to 100% by weight of an alkyl methacrylate and 0 to
- the fluororesin-laminated acrylic resin film of the present invention has an average particle diameter d (nm) of the acrylate ester cross-linked elastic body and a multiplicity having two or more non-conjugated double bonds per copolymerizable molecule.
- the amount w (% by weight) of the functional monomer preferably satisfies the relational expression: 0.02d ⁇ w ⁇ 0.06d.
- the fluororesin laminated acrylic resin film of the present invention preferably has a reduced viscosity of 0.2 to 0.8 dl / g of the methyl ethyl ketone-soluble component of the acrylic resin (A).
- the total thickness of the fluororesin laminated acrylic resin film of the present invention is preferably 30 to 300 ⁇ m, and the thickness of the fluororesin film layer is preferably 1 to 30 ⁇ m.
- the molded product of the present invention is formed by laminating the fluororesin film of the present invention or a fluororesin laminated acrylic resin film.
- the fluororesin film and fluororesin laminated acrylic resin film of the present invention are excellent in transparency, surface hardness, chemical resistance, and stain resistance.
- the fluororesin (C) in the present invention includes a fluorine-based (meth) acrylic resin (B) containing a fluorine-containing alkyl (meth) acrylate polymer component.
- the fluororesin film formed by molding the fluororesin (C) can exhibit transparency, surface hardness, chemical resistance, stain resistance against lactic acid, sunscreen, and the like.
- (meth) acryl means methacryl and / or acryl.
- the “fluorinated alkyl (meth) acrylate polymer component” includes a fluorinated alkyl (meth) acrylate (co) polymer, that is, a fluorinated alkyl (meth) acrylate polymer and / or a fluorinated alkyl (meth) acrylate. Copolymers can be used.
- the content of the fluorine-containing alkyl (meth) acrylate polymer component is preferably 80% by weight or more and 90% by weight when the total weight of the fluorine-based (meth) acrylic resin (B) is 100% by weight from the viewpoint of chemical resistance. % Or more is more preferable.
- fluorine-containing alkyl (meth) acrylate polymers can be used. Specific examples thereof include poly (trifluoromethyl methacrylate), poly (2,2,2-trifluoroethyl acrylate), poly (2 , 2,2-trifluoroethyl methacrylate), poly (1,1,1,3,3,3-hexafluoro-2-propyl methacrylate), poly (1,1,1,3,3,3-hexafluoro -2-propyl methacrylate), polyperfluoroethylmethyl methacrylate, polyperfluoropropylmethyl acrylate, polyperfluoropropylmethyl methacrylate, polyperfluorobutylmethyl acrylate, polyperfluorobutylmethyl methacrylate, polyperfluoropentylmethyl acrylate, Riperfluoropentylmethyl methacrylate, polyperfluorohexylmethyl acrylate, polyperfluorohexylmethyl methacrylate, polyperfluoro
- poly (trifluoromethyl methacrylate) and poly (2,2,2-trifluoroethyl acrylate) are preferred in terms of transparency when formed into a film-like molded article and adhesion with the acrylic resin (A) layer.
- the production method of the fluorine-containing alkyl (meth) acrylate polymer is not particularly limited as long as it is a commonly used method, and is a known emulsion polymerization method, emulsion-suspension polymerization method, suspension polymerization method, bulk polymerization method or A solution polymerization method is applicable. It is preferable to carry out suspension polymerization with stirring by adding a polymerizable monomer containing a fluorine-containing alkyl (meth) acrylate, a dispersion stabilizer, an oil-soluble radical polymerization initiator and ion-exchanged water to a polymerization vessel.
- dispersion stabilizer examples include gelatin, methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, polyethylene glycol, polyoxyethylene-polyoxypropylene block copolymer, polyacrylamide, polyacrylic acid, polyacrylate, sodium alginate, Examples thereof include water-soluble polymers such as partially saponified polyvinyl alcohol, inorganic substances such as tricalcium phosphate, titanium oxide, calcium carbonate, and silicon dioxide. Among these dispersion stabilizers, polyvinyl alcohol partially saponified product, hydroxypropyl cellulose, and tricalcium phosphate are particularly preferably used. These dispersion stabilizers may be used alone or in combination of two or more. The amount of the dispersion stabilizer used is, for example, about 0.1 to 60 parts by weight, preferably about 0.2 to 30 parts by weight with respect to 100 parts by weight of the polymerizable monomer.
- the oil-soluble radical polymerization initiator is preferably dissolved in advance in a polymerizable monomer.
- the oil-soluble radical initiator include organic peroxides such as benzoyl peroxide, o-methoxybenzoyl peroxide, o-chlorobenzoyl peroxide, lauroyl peroxide, cumene hydroperoxide, and 2,2′-azobis.
- examples include azo compounds such as isobutyronitrile and 2,2′-azobis-2,4-dimethylvaleronitrile.
- benzoyl peroxide, lauroyl peroxide, 2,2'-azobisisobutyronitrile and the like are preferably used.
- radical polymerization initiators may be used alone or in combination of two or more.
- the amount of radical polymerization initiator used is, for example, about 0.1 to 5 parts by weight, preferably about 0.1 to 2 parts by weight, based on 100 parts by weight of the polymerizable monomer.
- a surfactant may be added to stabilize the dispersion of the polymerizable monomer droplets.
- the surfactant that can be used include anionic surfactants such as sodium dodecylbenzenesulfonate, sodium dialkylsulfosuccinate and sodium lauryl sulfate, and nonionic surfactants such as polyethylene glycol nonylphenyl ether. These surfactants may be used alone or in combination of two or more.
- the amount of the surfactant used is, for example, about 0.05 to 2 parts by weight with respect to 100 parts by weight of the polymerizable monomer.
- an aqueous phase polymerization inhibitor such as sodium nitrite may be added.
- a monomer mixture is mixed with a mixture of a polymerizable monomer, a dispersion stabilizer, an oil-soluble radical polymerization initiator and ion-exchanged water by a shearing force by stirring.
- a method of adjusting oil droplets to a desired size is preferred.
- various dispersing means such as a homomixer, homodisper, homogenizer, and line mixer.
- the size of the monomer oil droplets can be controlled by adjusting the shearing force according to the rotational speed of the dispersing means.
- the monomer oil droplets (polymerizable monomer dispersion) thus prepared are heated to the 10-hour half-life temperature of a normal radical polymerization initiator, and a polymer particle suspension is obtained by conducting a polymerization reaction.
- a normal radical polymerization initiator For example, when lauroyl peroxide is used as the radical initiator, the temperature is raised to 55 ° C. or higher, and when 2,2′-azobisisobutyronitrile is used, the temperature is raised to 65 ° C. or higher to perform radical polymerization.
- the fluorine-containing alkyl (meth) acrylate polymer obtained by polymerization is taken out from the polymerization reaction solution as a powder (fine particles) by a normal operation and used. That is, after aggregating by salting out or freezing, a method by centrifugation or a method by spray drying can be employed.
- fluorine-containing alkyl (meth) acrylate polymer component a fluorine-containing alkyl (meth) acrylate copolymer obtained by copolymerizing fluorine-containing alkyl (meth) acrylate with other copolymerizable monomer species may be used.
- copolymerizable monomer species include, for example, the above-mentioned fluorine-containing alkyl (meth) acrylate polymer monomer species, methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, and t-methacrylate.
- acrylates such as butyl, acrylates such as methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, isobutyl acrylate, t-butyl methacrylate, vinyl chloride, vinyl bromide Vinyl cyanides such as vinyl, acrylonitrile and methacrylonitrile, vinyl esters such as vinyl formate, vinyl acetate and vinyl propionate, aromatic vinyl derivatives such as styrene, vinyltoluene and ⁇ -methylstyrene, vinylidene chloride and vinylidene fluoride Of vinylidene halide, acrylic acid such as acrylic acid, sodium acrylate, calcium acrylate and salts thereof, ⁇ -hydroxyethyl acrylate, dimethylaminoethyl acrylate, glycidyl acrylate, acrylamide, N-methylol acrylamide, etc.
- vinylidene halide acrylic acid such as acrylic acid,
- Alkyl acrylate derivatives methacrylic acid and its salts such as methacrylic acid, sodium methacrylate, calcium methacrylate, etc., methacrylic acid alkyl esters such as methacrylamide, ⁇ -hydroxyethyl methacrylate, dimethylaminoethyl methacrylate, glycidyl methacrylate Derivatives and the like. Two or more of these monomers may be used in combination.
- acrylic acid esters are preferable, and alkyl acrylates are more preferable in terms of weather resistance, heat resistance, and transparency.
- alkyl acrylates are more preferable in terms of weather resistance, heat resistance, and transparency.
- those having 1 to 12 carbon atoms in the alkyl group are preferable and may be linear or branched.
- the fluorine-containing alkyl (meth) acrylate copolymer is 80 to 99.9% by weight of fluorine-containing alkyl (meth) acrylate and other copolymers from the viewpoints of transparency, heat resistance, moldability, and adhesion to the laminate. It may be formed from a composition comprising 0.1 to 20% by weight of polymerizable monomer species. More preferably, it is 90 to 99.9% by weight of fluorine-containing alkyl (meth) acrylate and 0.1 to 10% by weight of other copolymerizable monomer species. By containing 0.1% by weight or more of other copolymerizable monomer species, preferably acrylic acid ester, transparency, heat resistance and adhesiveness can be improved. When the fluorine-containing alkyl (meth) acrylate is less than 80% by weight, chemical resistance and stain resistance tend to be lowered.
- the fluorine-containing alkyl (meth) acrylate copolymer may be produced by the same method as the method for producing the fluorine-containing alkyl (meth) acrylate polymer described above.
- fluorine polymer fine particles preferably have an average particle size of 0.5 to 200 ⁇ m. 100 ⁇ m is more preferable.
- the average particle diameter of the fluorine-based polymer fine particles in the present invention is a value measured using a light scattering method in a latex state using a Microtrac particle size distribution measuring device MT3000 manufactured by Nikkiso Co., Ltd.
- the shape of the fluorine-based polymer fine particles is not particularly limited, but is preferably a sphere or a spheroid.
- Fluorine-containing alkyl (meth) acrylate (co) polymers may be used singly or in combination of two or more.
- the fluorine-based (meth) acrylic resin (B) may contain a known fluorine-based (meth) acrylic resin.
- the melt viscosity of the fluorine-based (meth) acrylic resin (B) is preferably 300 to 4000 Pa ⁇ sec, more preferably 300 to 3000 Pa ⁇ sec, and further preferably 300 to 2000 Pa ⁇ sec. If the melt viscosity of the fluorine-based (meth) acrylic resin (B) is less than 300 Pa ⁇ sec, it tends to be difficult to uniformly develop in the width direction. If it exceeds 4000 Pa ⁇ sec, it will be difficult to spread uniformly in the flow direction, and it will be difficult to make a thin film, and unevenness will occur at the interface with the acrylic resin (A) layer, which tends to cause poor adhesion and poor appearance such as die lines. is there.
- This melt viscosity (Pa ⁇ sec) is in accordance with JIS K7199 using a melt viscosity measuring device (manufactured by Toyo Seiki Seisakusho, Capillograph 1D) under conditions of a die temperature of 220 ° C., a shear rate of 122 S ⁇ 1 , and a capillary die diameter of 1 mm. Measured value.
- the acrylic resin (A) described later may be added to the fluororesin (C) from the viewpoint of weather resistance (particularly UV protection performance), cost, moldability, and adhesion to the laminated object.
- a known light diffusing agent may be added to the fluororesin (C) for designability.
- a cross-linked polymer particle of a fluorine-containing alkyl (meth) acrylate polymer or an acrylic resin described later, particularly, a cross-linked polymer particle of an acrylic ester or a methacrylic ester may be dispersible.
- the fluororesin (C) may contain polyvinylidene fluoride from the viewpoint of heat resistance.
- a well-known thing can be used as a polyvinylidene fluoride.
- the content is preferably 0.1 to 10 parts by weight, more preferably 0.5 to 10 parts by weight of polyvinylidene fluoride with respect to 100 parts by weight of the fluorine-based (meth) acrylic resin (B). .
- Fluorine resin has an inorganic pigment or organic dye for coloring, and an antioxidant, heat stabilizer, UV absorber, UV stabilizer, etc. to further improve the stability to heat and light.
- an acrylic matting agent, a filler such as mica or glass, or an antibacterial agent, a deodorizing agent, or a lubricant may be added. You may add these individually or in combination of 2 or more types.
- the fluororesin film can be manufactured by a general method, and examples thereof include a method of melt-extruding into a film shape from a T die attached to the tip of an extruder.
- an extruder to be used either a single screw extruder or a twin screw extruder may be used. However, when using a twin-screw extruder, it is preferable to use a quantitative feeder to supply the raw resin for discharge rate control. From the viewpoint of resin pressure control and film forming accuracy, the extruder and die It is preferable to extrude resin through a gear pump.
- the thickness of the fluororesin film of the present invention is preferably 30 to 300 ⁇ m and more preferably 30 to 200 ⁇ m from the viewpoint of moldability and transparency.
- the fluororesin laminated acrylic resin film of the present invention is a fluororesin comprising a fluoro (meth) acrylic resin (B) containing a fluoroalkyl (meth) acrylate polymer component on at least one side of the acrylic resin (A) film layer. (C) A film layer is laminated.
- the fluororesin-laminated acrylic resin film of the present invention can exhibit a balance of transparency, surface hardness, chemical resistance, and contamination resistance while utilizing the excellent properties of the acrylic resin (A).
- Acrylic resin (A) a known acrylic resin can be used.
- an acrylic graft copolymer (a-1) produced by the same reactor and then a methacrylic polymer (a-2) can be used.
- acrylic elastomer graft copolymer (a-1) 50 to 100% by weight of methacrylic acid ester in the presence of an acrylic ester cross-linked elastic body (cross-linked elastic body mainly composed of acrylic acid ester) and Those obtained by copolymerizing a monomer mixture (a-1b) comprising 0 to 50% by weight of another copolymerizable vinyl monomer are preferred.
- the acrylic ester-based crosslinked elastic body has an acrylic ester, other vinyl monomers that can be copolymerized as required, and two or more non-conjugated double bonds per copolymerizable molecule.
- a polymer obtained by polymerizing a monomer mixture (a-1a) comprising a polyfunctional monomer can be preferably used.
- Monomers and polyfunctional monomers may all be mixed (one-stage polymerization) and used more than once (two-stage polymerization) by changing the composition of the monomer and polyfunctional monomer. The polymerization may be used separately.
- an alkyl acrylate ester is preferable from the viewpoint of polymerizability and cost, and an alkyl group having 1 to 12 carbon atoms can be used. Specific examples thereof include methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, n-octyl acrylate and the like. These may be used alone or in combination of two or more.
- the amount of acrylate ester in the acrylate-based crosslinked elastic body is preferably 50 to 99.9% by weight, more preferably 70 to 99.9% by weight, and most preferably 80 to 99.9% by weight.
- the amount of the acrylate ester is less than 50% by weight, the impact resistance is lowered, the elongation at the time of tensile break is lowered, and cracks tend to be generated at the time of film cutting.
- Examples of other copolymerizable vinyl monomers in the acrylic ester-based crosslinked elastomer include, for example, methyl methacrylate, ethyl methacrylate, propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, t-methacrylic acid t- Methacrylic acid alkyl esters such as butyl (alkyl groups having 1 to 12 carbon atoms are preferred, may be linear or branched), vinyl halides such as vinyl chloride and vinyl bromide, acrylonitrile, methacrylonitrile Vinyl cyanides such as vinyl formate, vinyl esters such as vinyl acetate and vinyl propionate, aromatic vinyl derivatives such as styrene, vinyl toluene and ⁇ -methylstyrene, vinylidene halides such as vinylidene chloride and vinylidene fluoride, and acrylic acid , Sodium acrylate, cal acrylate Acrylic acid such as um
- alkyl ester derivatives methacrylic acid, sodium methacrylate, methacryl
- methacrylic acid such as calcium acid and salts thereof
- methacrylic acid alkyl ester derivatives such as methacrylamide, ⁇ -hydroxyethyl methacrylate, dimethylaminoethyl methacrylate, glycidyl methacrylate, and the like. These may be used alone or in combination of two or more.
- methacrylic acid esters are particularly preferable from the viewpoint of weather resistance and transparency.
- the amount of the other copolymerizable vinyl monomer in the acrylic ester-based crosslinked elastomer is preferably 0 to 49.9% by weight, more preferably 0 to 30% by weight, and most preferably 0 to 20% by weight. .
- the amount of the other vinyl monomer exceeds 49.9% by weight, impact resistance is lowered, elongation at the time of tensile break is lowered, and cracks are likely to be generated at the time of film cutting.
- the polyfunctional monomer having two or more non-conjugated double bonds per molecule that can be copolymerized in the acrylic ester-based crosslinked elastomer may be a commonly used monomer such as allyl methacrylate or allyl acrylate.
- the amount of the polyfunctional monomer having two or more non-conjugated double bonds per molecule that can be copolymerized in the acrylate cross-linked elastomer is determined by the stress along with the average particle size of the acrylate cross-linked elastomer. It greatly affects whitening, elongation at the time of tensile break, or transparency.
- the blending amount of the polyfunctional monomer in the acrylic ester-based crosslinked elastic body of the present invention is preferably 0.1 to 10% by weight, preferably 1.0 to 4%, based on 100% by weight of the monomer mixture (a-1a). Weight percent is more preferred.
- a blending amount of the polyfunctional monomer of 0.1 to 10% by weight is preferable from the viewpoints of bending crack resistance, bending whitening resistance, and resin flowability during molding.
- the acrylic elastic graft copolymer (a-1) contains 50 to 100% by weight of a methacrylic acid ester and other vinyl monomers 0 to 50 which can be copolymerized in the presence of an acrylic ester cross-linked elastic body. What is obtained by copolymerizing a monomer mixture (a-1b) consisting of% by weight is preferred. More preferably, in the presence of 5 to 85 parts by weight of an acrylic ester-based crosslinked elastic body, a monomer comprising 50 to 100% by weight of an alkyl methacrylate and 0 to 50% by weight of another copolymerizable vinyl monomer. It is obtained by copolymerizing 95 to 15 parts by weight of the monomer mixture (a-1b) in at least one stage. However, the total amount of the monomer mixture (a-1a) and the monomer mixture (a-1b) satisfies 100 parts by weight.
- the blending amount of the methacrylic acid alkyl ester in the monomer mixture (a-1b) is preferably 80% by weight or more, more preferably 85% by weight, and still more preferably 90% by weight in terms of hardness and rigidity.
- copolymerizable vinyl monomers those used in the acrylate-based crosslinked elastic body and alkyl acrylates having an alkyl group with 1 to 12 carbon atoms can be used.
- a component (free polymer) that becomes an ungrafted polymer is generated without grafting to the acrylate-based crosslinked elastic body.
- This component (free polymer) can be used as a part or all of the methacrylic polymer (a-2).
- the graft ratio to the acrylic ester-based crosslinked elastic body is preferably 30 to 250%, more preferably 50 to 230%, and still more preferably 70 to 220%.
- the graft ratio is less than 30%, the bending whitening resistance is lowered, the transparency is lowered, the elongation at the time of tensile break is lowered, and cracks tend to be generated at the time of film cutting. If it exceeds 250%, the melt viscosity at the time of film formation tends to be high, and the moldability of the film tends to deteriorate.
- the production method of the acrylic elastic graft copolymer (a-1) is not particularly limited, and a known emulsion polymerization method, emulsion-suspension polymerization method, suspension polymerization method, bulk polymerization method or solution polymerization method is applied. Although possible, emulsion polymerization is particularly preferred.
- the average particle diameter d of the acrylic elastic graft copolymer (a-1) is preferably more than 100 nm and less than 400 nm, more preferably more than 100 nm and less than 350 nm, and further preferably more than 100 nm and less than 300 nm.
- the average particle diameter of the acrylic elastic body graft copolymer (a-1) is 100 nm or less, the impact resistance and bending cracking resistance of the film tend to be lowered. If it exceeds 400 nm, the transparency of the film tends to decrease.
- the average particle diameter of the acrylic elastomer graft copolymer (a-1) here is a value measured using a light scattering method in a latex state using a Microtrac particle size distribution measuring device MT3000 manufactured by Nikkiso Co., Ltd. .
- the amount w of the polyfunctional monomer is in the above range, stress whitening is unlikely to occur, impact resistance is unlikely to decrease, elongation at the time of tensile break is unlikely to decrease, cracks are not likely to occur during film cutting, and transparency is high. There is an advantage that the film formability is good and is not easily lowered.
- the average particle diameter d of the acrylate-based crosslinked elastic body in the acrylic resin (A) is preferably 50 to 200 nm, more preferably 50 to 160 nm, still more preferably 50 to 120 nm, and particularly preferably 60 to 120 nm. If the average particle diameter d of the acrylic ester-based cross-linked elastic body is 50 nm or more, impact resistance and elongation at the time of tensile break are less likely to be reduced, and cracks are less likely to occur during film cutting. Is preferable, and transparency, particularly transparency after vacuum forming (maintaining transparency before and after heating) can be ensured.
- the average particle diameter d of the acrylic ester-based crosslinked elastic body is adjusted to a accelerating voltage of 80 kV using a transmission electron microscope (JEOL Co., Ltd., JEM1200EX) after preparing a sample from the obtained film by a freezing ultrathin section method. It is a value measured based on a photograph observed at 40000 times.
- the reduced viscosity of the methyl ethyl ketone soluble part of the acrylic resin (A) is preferably 0.2 to 0.8 dl / g, more preferably 0.2 to 0.7 dl / g, and 0.2 to 0.6 dl / g. Further preferred. If it is the said range, the elongation at the time of the tensile fracture of the film obtained does not fall easily, and when a film is cut
- the reduced viscosity of the methyl ethyl ketone soluble matter here is determined by dissolving the acrylic resin (A) in methyl ethyl ketone, and then using a standard viscosity tube based on ISO 1628-1, in a constant temperature room at 25 ° C. It is a value calculated by measuring the flow time and using these values and the solution concentration.
- the acrylic elastic graft copolymer (a-1) is obtained by copolymerizing the ultraviolet absorber represented by the general formula (1), and bleeds during the ultraviolet ray shielding performance, the ultraviolet ray shielding performance retention rate, and the molding process. From the point of difficulty, it is more preferable.
- Examples of the ultraviolet absorber represented by the general formula (1) include 2- (2′-hydroxy-5′-methacryloyloxyethylphenyl) -2H-benzotriazoles, and 2- (2′-hydroxy-5 '-Acryloyloxyethylphenyl) -2H-benzotriazol, 2- (2'-hydroxy-5'-methacryloyloxyethylphenyl) -2H-benzotriazol, 2- (2'-hydroxy-5'-methacryloyloxyethylphenyl) -2H-benzotriazol, 2- (2'-hydroxy-5'-methacryloyloxy) Ethylphenyl) -5-chloro-2H-benzotriazol, 2- (2′-hydroxy-5′-methacryloyloxypropylphenyl) -2H-benzotriazol
- the copolymerization ratio of the ultraviolet absorber represented by the general formula (1) is preferably 0.01 to 30 parts by weight, preferably 0.01 to 100 parts by weight with respect to 100 parts by weight of the acrylic elastic body graft copolymer (a-1). More preferred is 25 parts by weight, still more preferred is 0.01 to 20 parts by weight, and particularly preferred is 0.05 to 20 parts by weight.
- the copolymerization ratio of the ultraviolet absorber represented by the general formula (1) is less than 0.01 parts by weight, the effect of increasing the weather resistance of the obtained film tends to hardly occur, and when it exceeds 30 parts by weight, the impact resistance of the film There is a tendency that the effect of improving the resistance and bending cracking resistance hardly occurs.
- the copolymer of the ultraviolet absorber represented by the general formula (1) may be copolymerized in any layer of the acrylic elastic graft copolymer (a-1). And the methacrylic acid ester copolymer (a-1b) is preferably copolymerized, and the ultraviolet absorber may be uniformly copolymerized over the entire acrylic elastomer graft copolymer (a-1). More preferred.
- the method for copolymerizing the ultraviolet absorber represented by the general formula (1) is not particularly limited, and it is preferable to carry out the copolymerization during the production of the acrylic elastic graft copolymer (a-1).
- initiators such as organic peroxides, inorganic peroxides, and azo compounds can be used.
- organic peroxides such as benzoyl peroxide, sodium formaldehyde sulfoxylate, reducing sugar, ascorbic acid, inorganic peroxides such as potassium persulfate, sodium persulfate, divalent iron salts, and azobisisobutyrate
- An azo compound such as ronitrile is also used.
- These may be used alone or in combination of two or more.
- These initiators are combined with reducing agents such as sodium sulfite, sodium thiosulfate, sodium formaldehyde sulfoxylate, ascorbic acid, hydroxyacetone acid, ferrous sulfate, ferrous sulfate and disodium ethylenediaminetetraacetate It may also be used as a normal redox type initiator.
- redox combined with inorganic reducing agents such as divalent iron salts and / or organic reducing agents such as formaldehyde sulfoxylate sodium, reducing sugar and ascorbic acid from the viewpoint of polymerization stability and particle size control. It is preferred to use a system initiator.
- the organic peroxide can be added by a known addition method such as a method of adding it to the polymerization system as it is, a method of adding it mixed with a monomer, a method of adding it dispersed in an aqueous emulsifier solution, or the like. From the viewpoint of transparency, a method of adding a mixture to a monomer or a method of adding it by dispersing in an aqueous emulsifier solution is preferable.
- surfactant used for the emulsion polymerization there is no particular limitation on the surfactant used for the emulsion polymerization, and any surfactant for normal emulsion polymerization can be used.
- anionic surfactants such as sodium alkyl sulfonate, sodium alkyl benzene sulfonate, sodium dioctyl sulfosuccinate, sodium lauryl sulfate, and sodium fatty acid, alkylphenols, aliphatic alcohols and propylene oxide, ethylene oxide
- Nonionic surfactants such as reaction products are listed. These surfactants may be used alone or in combination of two or more.
- a cationic surfactant such as an alkylamine salt may be used.
- the resulting acrylic elastomeric graft copolymer (a-1) latex is separated and recovered by the usual coagulation, washing and drying operations, or by treatment such as spray drying and freeze drying. Is done.
- methacrylic polymer (a-2) a methacrylic ester polymer or a copolymer with another vinyl monomer copolymerizable with the methacrylic ester can be used.
- a product obtained by copolymerizing a monomer mixture comprising 80 to 100% by weight of a methacrylic acid ester and 0 to 20% by weight of another copolymerizable vinyl monomer can be used.
- the blending amount of the methacrylic acid ester is more preferably 85% by weight or more, and further preferably 90% by weight or more.
- methacrylic acid ester an alkyl methacrylic acid ester is preferable, and methyl methacrylate is more preferable because it can be easily obtained.
- Examples of other copolymerizable vinyl monomers in the methacrylic polymer (a-2) include those used for the acrylic elastic graft copolymer (a-1). These monomers may be used independently and may use 2 or more types together.
- the methacrylic polymer (a-2) can be polymerized separately from the acrylic elastic graft copolymer (a-1).
- the polymerization method is not particularly limited, and a known emulsion polymerization method, emulsion-suspension polymerization method, suspension polymerization method, bulk polymerization method or solution polymerization method can be applied.
- the average particle diameter of the methacrylic polymer (a-2) is preferably 100 to 500 ⁇ m, more preferably 100 to 300 ⁇ m.
- the average particle size of the methacrylic polymer (a-2) is less than 100 ⁇ m, impact resistance, bending cracking resistance, and chemical resistance tend to decrease, and when it exceeds 500 ⁇ m, transparency tends to decrease. .
- the average particle diameter of the methacrylic polymer (a-2) is a value measured using a light scattering method in a latex state using a Nikkiso Microtrac particle size distribution analyzer MT3000.
- the initiator for the polymerization of the methacrylic polymer (a-2) is the same as the initiator for the polymerization of the acrylic ester-based crosslinked elastic body (a-1a), and is a known organic peroxide or inorganic type. Initiators such as peroxides and azo compounds can be used. These may be used alone or in combination of two or more.
- the organic peroxide can be added by a known addition method such as a method of adding it to the polymerization system as it is, a method of adding it by mixing with a monomer, a method of adding it by dispersing in an aqueous emulsifier solution, etc. From the viewpoint of properties, a method of adding to a monomer is preferable.
- dispersant used for suspension polymerization examples include dispersants generally used for suspension polymerization, for example, polymer dispersants such as polyvinyl alcohol, polyvinyl pyrrolidone, and polyacrylamide, calcium phosphate, hydroxyapatite, magnesium pyrophosphate, and the like.
- the slightly water-soluble inorganic salt of In the case of using a poorly water-soluble inorganic salt, it is effective to use an anionic surfactant such as ⁇ -olefin sodium sulfonate or dodecylbenzene sulfonic acid soda in order to increase dispersion stability.
- These dispersants may be added one or more times during the polymerization in order to adjust the particle diameter of the resin particles obtained.
- the content of the acrylic elastic graft copolymer (a-1) in the acrylic resin (A) is preferably 5 to 100% by weight, more preferably 5 to 45% by weight, and further 10 to 30% by weight. preferable. However, the total amount of the acrylic elastic graft copolymer (a-1) and the methacrylic polymer (a-2) is 100% by weight. If the content of the acrylic elastic graft copolymer (a-1) is 5% by weight or more, the elongation at the time of tensile break of the obtained film is difficult to decrease, and cracks are hardly generated when the film is cut. In addition, stress whitening tends to be difficult to occur. When the content is from 5 to 45% by weight, the hardness and rigidity of the obtained film tend to be good.
- a fluororesin laminated acrylic resin film comprising the fluororesin (C) film layer and the acrylic resin (A) film layer of the present invention
- it can be produced by a general method, and dry lamination Method, wet laminating method, hot melt laminating method, hot press laminating method, extrusion laminating method by laminating while extruding into a film shape by T-die, etc., coextrusion method by fusion bonding outside the die such as inside die or multi-slot method Is mentioned.
- the coextrusion method is most preferred from the viewpoints of securing the adhesion between the fluororesin (C) film layer and the acrylic resin (A) film layer and the ease of controlling the thermal history of the film during the production of the multilayer film.
- the co-extrusion method is preferably a method in which bonding is performed in a T die.
- a normal single layer manifold die is used as a T die, and a combined flow layer is formed at an inflow portion thereof.
- a plate with a built-in manifold is provided throughout the die, and the die body has a recess with a built-in plate, and a stack in which a plate pack in which unit plates are stacked is inserted. Plate type laminating equipment, etc. are mentioned.
- the extruder used for the coextrusion method either a single screw extruder or a twin screw extruder may be used. However, when using a twin-screw extruder, it is preferable to use a quantitative feeder to supply the raw resin for discharge rate control. From the viewpoint of resin pressure control and film forming accuracy, the extruder and die It is preferable to extrude resin through a gear pump.
- the temperature of the die cylinder installed at the extruder cylinder and the extruder tip is adjusted at 150 to 270 ° C. when forming the laminated film. If the set temperature is less than 150 ° C., the resin becomes unmelted and is difficult to be uniformly kneaded, so that the moldability tends to decrease. If the temperature is higher than 270 ° C., there is also shearing heat generation in the extruder. It rises more than necessary, the decomposition of the resin is promoted, and the quality of the molded product tends to deteriorate.
- both sides of the film are brought into contact with a roll or a metal belt at the same time, in particular, by simultaneously bringing into contact with a roll or a metal belt heated to a temperature higher than the glass transition temperature.
- An excellent film can also be obtained, and the film can be modified by biaxial stretching or the like depending on the purpose.
- the total thickness of the fluororesin laminated acrylic resin film of the present invention is preferably 30 to 300 ⁇ m, and more preferably 30 to 200 ⁇ m. If the total thickness of the fluororesin laminated acrylic resin film is less than 30 ⁇ m, the film forming processability tends to decrease and wrinkles tend to occur during film winding. If it exceeds 300 ⁇ m, the transparency of the film decreases. Further, the secondary workability tends to decrease.
- the thickness of the fluororesin (C) film layer in the fluororesin laminated acrylic resin film of the present invention is preferably 1 to 30 ⁇ m, more preferably 5 to 30 ⁇ m, and even more preferably 5 to 20 ⁇ m.
- the thickness of the fluororesin (C) film layer is less than 1 ⁇ m, sufficient weather resistance, chemical resistance, and contamination resistance are not obtained, and the moldability tends to decrease.
- it exceeds 30 ⁇ m it is disadvantageous in cost.
- the transparency of the film is lowered, and the moldability is lowered, and appearance defects such as die lines tend to occur.
- adhesion using a suitable adhesive or adhesive resin between the fluororesin (C) film layer and the acrylic resin (A) film layer for laminating as long as the effects of the present invention are not impaired.
- a layer may be provided.
- Suitable adhesives and adhesive resins can be used, such as (meth) acrylic acid alkyl ester resins, or copolymers thereof, styrene-butadiene copolymers, polyisoprene rubber, polyisobutylene rubber, etc.
- acrylic resins and mixtures with (meth) acrylic acid alkyl ester resins examples thereof include acrylic resins and mixtures with (meth) acrylic acid alkyl ester resins.
- a (meth) acrylic acid alkyl ester-based resin which is a copolymer mainly composed of a (meth) acrylic acid alkyl ester monomer is preferable. These may be used alone, or may be used as an adhesive composition by blending a crosslinking agent and a tackifier.
- the (meth) acrylic acid alkyl ester resin is an alkyl ester of acrylic acid or methacrylic acid, and is not particularly limited.
- ethyl acrylate, isopropyl acrylate, n-butyl acrylate, acrylic acid examples include isobutyl, pentyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate, isononyl (meth) acrylate, decyl (meth) acrylate, and lauryl (meth) acrylate.
- the method for providing the adhesive layer may be the same method as the method for forming the fluororesin laminated acrylic resin film.
- preferred uses include vehicle use and building material use.
- Specific examples include instrument panels, console boxes, meter covers, door lock pezels, steering wheels, power window switch bases, center clusters, dashboards and other automotive interior applications, weather strips, bumpers, bumper guards, side mud guards, body panels, Spoilers, front rills, strut mounts, wheel caps, center pillars, door mirrors, center ornaments, side moldings, door moldings, wind moldings, windows, headlamp covers, tail lamp covers, windshield parts and other automotive exterior applications, AV equipment and furniture products Applications such as front panels, buttons, emblems, surface cosmetics, housings for mobile phones, display windows, buttons, etc., and furniture exterior materials, walls Architectural interior materials such as ceilings and floors, exterior walls such as siding, exterior materials for buildings such as fences, roofs, gates, and windbreak boards, surface decorative materials for furniture such as window frames, doors, handrail sills, and duck It can
- the member surface after lamination is a fluororesin film layer
- an adhesive layer with the member is an acrylic resin (A) film layer.
- A acrylic resin
- the methods described in JP-B-63-6339, JP-B-4-9647, JP-A-7-9484, JP-A-8-323934, JP-A-10-279766, etc. It is preferable to manufacture by the same film-in-mold molding method or film insert molding method.
- a film that has been given a shape by vacuum forming or the like, or a film that has not been given is inserted between injection molds, the mold is closed with the film sandwiched, and the base resin is injection-molded. It is preferable to melt and integrate the film on the surface of the injected base resin molded body. At that time, the injection conditions such as the resin temperature and the injection pressure are appropriately set in consideration of the type of the base resin.
- Parts and “%” in the following production examples, examples and comparative examples represent “parts by weight” and “% by weight”, respectively.
- each measuring method of the physical properties measured in the following examples and comparative examples is as follows.
- the surface hardness of the obtained film was evaluated by measuring the pencil hardness according to JIS K5600-5-4.
- Fluororesin (C-1) ⁇ Fluorine-containing alkyl (meth) acrylate polymer (b-1)>
- a dispersion container 300 parts of deionized water and 2 parts of polyvinyl alcohol were added.
- a monomer solution consisting of 95 parts of 2,2,2-trifluoroethyl methacrylate, 5 parts of ethylene glycol dimethacrylate and 1 part of lauryl peroxide was prepared and added to the dispersion container.
- the obtained mixed liquid was subjected to dispersion treatment using a homomixer to obtain a dispersion liquid having a droplet diameter adjusted to 100 nm.
- This dispersion was poured into an 8 L polymerization reactor equipped with a stirrer, thermometer, reflux condenser and nitrogen inlet, and polymerized for 3 hours at a liquid temperature of 80 to 90 ° C. while stirring at 70 ° C. under a nitrogen stream. Reaction was performed.
- ⁇ Acrylic resin (A-1)> After 70 parts of the acrylic elastic graft copolymer (a1-1) and 30 parts of the methacrylic polymer (a1-2) obtained as described above were mixed using a Henschel mixer, the cylinder temperature was set to 200 ° C. to 260 ° C. Using a 40mm ⁇ single screw extruder (Osaka Seiki Kogyo Co., Ltd.) adjusted to a temperature of °C, melt kneading at a screw rotation speed of 90rpm and a discharge rate of 15kg / hour, taking it into a strand, and cooling in a water bath The resin pellet (A-1) of acrylic resin was produced by cutting with a pelletizer.
- Fluororesin (C-3) A mixture of 80 parts of the fluorinated alkyl (meth) acrylate polymer (b-1) obtained in Production Example 1 and 20 parts of the acrylic elastomer graft copolymer obtained in Production Example 2 was used as the fluororesin. Produced fluororesin resin pellets (C-3) in the same manner as in Production Example 2.
- Fluororesin (C-4) Fluororesin resin pellets (C) were produced in the same manner as in Production Example 2 except that only 100 parts of polyvinylidene fluoride (SOLEF-1008, manufactured by SOLVAY) was used as the fluororesin, and the cylinder temperature was changed to 260 ° C. -4) was produced.
- SOLEF-1008 polyvinylidene fluoride
- Fluororesin (C-6) Fluorine resin was treated in the same manner as in Production Example 3 except that a mixture of 100 parts of the fluorinated alkyl (meth) acrylate polymer (b-1) obtained in Production Example 1 and 10 parts of polyvinylidene fluoride was used. Resin pellets (C-6) of resin were produced.
- Fluororesin (C-7) The same operation as in Production Example 1 was conducted except that a mixture of 100 parts of the fluorinated alkyl (meth) acrylate polymer (b-1) obtained in Production Example 1 and 0.1 part of polyvinylidene fluoride was used as the fluororesin. Resin pellets (C-7) of fluororesin were produced.
- Example 1 The fluororesin resin pellets (C-1) obtained in Production Example 1 are melt-kneaded using a 40 mm ⁇ single screw extruder with a T-die at a cylinder set temperature of 160 to 220 ° C. and a discharge rate of 10 kg / hr. A monolayer resin film having a thickness of 125 ⁇ m was obtained at a die temperature of 240 ° C.
- Table 1 shows the evaluation results for the obtained film.
- Example 2 The same operation as in Example 1 except that the fluororesin pellets (C-2) obtained in Production Example 2 were used and the cylinder set temperature of the 40 mm ⁇ single screw extruder with T-die was changed to 180 to 240 ° C. Thus, a single-layer resin film having a thickness of 125 ⁇ m was obtained.
- Table 1 shows the evaluation results for the obtained film.
- the fluororesin single layer film of the present invention has a balance of chemical resistance, lactic acid resistance, stain resistance to sunscreen, transparency, and surface hardness. It turns out that it is excellent.
- Table 1 shows the evaluation results for the obtained film.
- Table 1 shows the evaluation results for the obtained film.
- a two-type two-layer T die (feed block method) was used.
- a 40 mm ⁇ single-screw extruder was used, and melted and kneaded at a cylinder set temperature of 200 to 260 ° C. at a discharge rate of 5 to 15 kg / hr.
- a fluororesin (C) As the extruder on the side, a 32 mm ⁇ single screw extruder was used and melt kneaded at a cylinder set temperature of 180 to 240 ° C. with a discharge rate of 0.5 to 3 kg / hr, and the die temperature was set to 240 ° C. A molten resin was added to the film to obtain a laminated film.
- Table 1 shows the evaluation results for the obtained film.
- Example 4 A laminated film was obtained in the same manner as in Example 3, except that the surface layer resin was changed to the fluororesin pellets (C-3) obtained in Production Example 4.
- Table 1 shows the evaluation results for the obtained film.
- the fluororesin laminated acrylic film of the present invention has an excellent balance of transparency, chemical resistance, stain resistance against sunscreen, lactic acid resistance and surface hardness. Especially, it is clear from the comparison with the comparative example 3 that the fluororesin laminated acrylic film of the present invention has an excellent effect on transparency and surface hardness. Furthermore, in the fluororesin laminated acrylic film of this invention, it turns out that the outstanding bending cracking resistance and bending whitening resistance of the acrylic resin single layer film shown by the comparative example 1 are maintained.
- Example 5 A laminated film was obtained in the same manner as in Example 3, except that the base resin was changed to the resin pellet (A-2) of acrylic resin obtained in Production Example 5.
- Table 1 shows the evaluation results for the obtained film.
- the fluororesin-laminated acrylic resin film of the present invention is excellent in transparency, surface strength, chemical resistance, and stain resistance even when the acrylic resin (A) is changed. I understand.
- Table 1 shows the evaluation results for the obtained film.
- Table 1 shows the evaluation results for the obtained film.
- the fluororesin film of Comparative Example 1 is inferior in stain resistance and lactic acid resistance to the sunscreen, and the fluororesin film in Comparative Example 2 is inferior in transparency and surface hardness.
- the fluororesin single layer film of the present invention is excellent in chemical resistance, lactic acid resistance, stain resistance to sunscreen, surface hardness, and transparency.
- the fluororesin laminated acrylic resin films of Comparative Examples 3 and 4 are inferior in transparency and surface hardness.
- the fluororesin-laminated acrylic resin film of the present invention is excellent in surface hardness and transparency, and also excellent in chemical resistance, lactic acid resistance, and stain resistance against sunscreen agents.
- the fluororesin laminated acrylic resin film of the present invention does not impair the excellent folding crack resistance and folding whitening resistance of the acrylic resin single layer film.
- Example 6 ⁇ Production 2 of fluororesin single layer film> (Example 6) A fluororesin single layer film was obtained in the same manner as in Example 2, except that the fluororesin pellets (C-6) obtained in Production Example 6 were used.
- Table 2 shows the evaluation results for the obtained film.
- Example 7 A laminated film was obtained in the same manner as in Example 3, except that the surface layer resin was changed to the fluororesin resin pellets (C-6) obtained in Production Example 6.
- Table 1 shows the evaluation results for the obtained film.
- the fluororesin laminated acrylic film of the present invention As shown in Table 2, in the fluororesin laminated acrylic film of the present invention, the transparency of the acrylic resin film of Comparative Example 1 is maintained despite the addition of polyvinylidene fluoride to the fluororesin. I understand that I can do it. Furthermore, it can be seen that the fluororesin laminated acrylic film of the present invention is excellent in the balance of surface hardness, chemical resistance, stain resistance, and heat resistance.
- Example 8 Except that the surface layer resin was changed to the fluororesin pellets (C-7) obtained in Production Example 7 and the T-die used for coextrusion was a two-kind two-layer T-die (stack plate method), Example 3 A laminated film was obtained by the same operation.
- Table 2 shows the evaluation results for the obtained film.
- Example 9 Example 3 is the same as Example 3 except that the resin pellet (C-6) of the fluororesin obtained in Production Example 6 was used as the surface layer resin, and the thickness of the laminated film was changed to 85 ⁇ m for the base resin layer and 40 ⁇ m for the surface resin layer. A laminated film was obtained by the same operation.
- Table 2 shows the evaluation results for the obtained film.
- the fluororesin of the present invention contains polyvinylidene fluoride, while maintaining excellent transparency with a haze value of 0.5 to 0.7% and surface hardness F, at high temperatures It can be seen that it is excellent in sunscreen resistance, has a heat aging resistance, has a reduced haze increase rate, and is excellent in heat resistance balance. Therefore, the fluororesin laminated acrylic resin film of the present invention can also be applied to a vehicle interior / exterior member that requires high transparency and surface hardness of 1% or less.
- the fluororesin-laminated acrylic resin film according to the present invention maintains excellent properties of acrylic resins such as excellent transparency, bending cracking resistance, bending whitening resistance, and surface hardness. Excellent sunscreen and lactic acid and stain resistance.
- polyvinylidene fluoride is contained in the fluororesin (C) of the present invention, it is possible to improve heat resistance while having high transparency. Therefore, the fluororesin-laminated acrylic resin film of the present invention can be applied to a vehicle interior / exterior member that is required to satisfy strict standards for these characteristics.
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Abstract
Description
アクリル系弾性体グラフト共重合体(a-1)が、アクリル酸アルキルエステル50~99.9重量%、共重合可能な他のビニル系単量体0~49.9重量%および共重合可能な1分子当たり2個以上の非共役二重結合を有する多官能性単量体0.1~10重量%からなる単量体混合物(a-1a)を重合してなる少なくとも一層のアクリル酸エステル系架橋弾性体5~85重量部の存在下に、
メタクリル酸アルキルエステル50~100重量%および共重合可能な他のビニル系単量体0~50重量%からなる単量体混合物(a-1b)を95~15重量部共重合してなる[(a-1a)および(a-1b)の合計量が100重量部]ものであり、
メタクリル系重合体(a-2)が、メタクリル酸アルキルエステル80~100重量%および共重合可能な他のビニル系単量体0~20重量%からなる単量体混合物を共重合してなるものであることが好ましい。
一般式(1)で示す紫外線吸収剤としては、例えば、2-(2’-ヒドロキシ-5’-メタクリロイルオキシエチルフェニル)-2H-ベンゾトリアゾ-ル類であり、2-(2’-ヒドロキシ-5’-アクリロイルオキシエチルフェニル)-2H-ベンゾトリアゾ-ル、2-(2’-ヒドロキシ-5’-メタクリロイルオキシエチルフェニル)-2H-ベンゾトリアゾ-ル、2-(2’-ヒドロキシ-5’-メタクリロイルオキシエチルフェニル)-5-クロロ-2H-ベンゾトリアゾ-ル、2-(2’-ヒドロキシ-5’-メタクリロイルオキシプロピルフェニル)-2H-ベンゾトリアゾ-ル、2-(2’-ヒドロキシ-5’-メタクリロイルオキシエチル-3’-t-ブチルフェニル)12H-ベンゾトリアゾ-ル等が挙げられる。これらのうちでは、コストおよび取り扱い性から、2-(2’-ヒドロキシ-5’-メタクリロイルオキシエチルフェニル)-2H-ベンゾトリアゾ-ルが好ましい。
得られたフィルムを、透過型電子顕微鏡(日本電子製JEM-1200EX)にて、加速電圧80kV、RuO4染色超薄切片法で撮影し、得られた写真からアクリル酸エステル系架橋弾性体粒子画像を無作為に100個選択し、それらの粒子径の平均値を求めた。
日機装株式会社製 Microtrac粒度分布測定装置MT3000を使用し、ラテックス状態で光散乱法を用いて測定した。
得られたフィルムの透明性は、JIS K6714に準じて、温度23℃±2℃、湿度50%±5%の条件下にて、曇価(ヘイズ)を測定した。
<耐キシレン性>
得られたフィルム上にキシレンを一滴(0.02g)垂らし、フィルムの変化を目視で評価した。
○:変化が全く認められない。
△:微小な滴下跡が認められる。
×:表面の劣化が酷く、滴下跡がはっきり認められる。
<耐日焼け止め剤性[耐コパトーン(登録商標)性](試験法1)>
得られたフィルム上に日焼け止め剤(コパトーン ウォーター・ベイビーズ・ローションSPF50)を少量塗布し、その上にガーゼを押し当て、500gの加重をかける。そのまま室温で1時間放置した後、オーブンで54℃、64℃、74℃で1時間加熱した後、付着した日焼け止め剤をガーゼでふき取り、フィルムを水洗し、目視で塗布部の変化を観測した。
○:変化が認められない。
△:微小な塗布跡が認められる。
×:表面の劣化が酷く、塗布跡がはっきり認められる。
得られたフィルム上に日焼け止め剤(コパトーン ウォーター・ベイビーズ・ローションSPF50)を一滴(0.005g)滴下し、2×3cmの範囲に刷毛を用いて延ばし、70℃、80℃、90℃で24時間放置した後、付着した日焼け止め剤をガーゼでふき取り、フィルムを水洗、目視で塗布部の変化を観測した。
○:変化が認められない。
△:微小な塗布跡が認められる。
×:表面の劣化が酷く、塗布跡がはっきり認められる。
得られたフィルム上に10%乳酸水溶液を一滴垂らし、80℃の温度条件化で24時間放置後、フィルムを水洗し、フィルムの変化を目視で評価した。
○:変化が全く認められない。
△:微小なピンホール状の溶解跡が認められる。
×:表面の劣化が酷く、溶解跡がはっきり認められる。
得られたフィルムを1回180度折り曲げて、折り曲げ部の変化を目視で評価した。
○:割れが認められない。
△:僅かに割れが発生する。
×:フィルムが割れ、完全に破断する。
得られたフィルムを1回180度折り曲げて、折り曲げ部の変化を目視で評価した。
○:白化が認められない。
△:光を透過した時に僅かに白化が認められる。
×:白化が認められる。
得られたフィルムの表面硬度は、JIS K5600-5-4に従い、鉛筆硬度を測定して評価した。
<フィルム連続成形性の評価:(評価法1)>
フィルム成形を2時間連続して行い、その運転状況を観察し、以下の基準により評価を行った。
○:フィルムの厚みが均一で、フィルムが破断せずに成形できる。
×:フィルムの厚みが不均一、またはフィルム破断が発生する。
積層フィルム成形を行い、その外観性を観察し、以下の基準により評価を行った。
○:表面層樹脂の展開性が均一であり、メルトフラクチャーによる界面ムラがない。
×:表面層樹脂の展開性が不均一であり、メルトフラクチャーによる界面ムラが発生する。
<耐熱老化性の評価>
得られたフィルムを、80℃の恒温槽にて168時間放置し、フィルムの状態を目視で評価、および透明性についてJIS K6714に準じて、温度23℃±2℃、湿度50%±5%の条件下にて、曇価(ヘイズ)を測定した。
○:変化が全く認められない。
△:熱によるフィルムの変形が僅かに認められる。
×:フィルムが白化、または熱により表面荒れや変形が発生する。
<含フッ素アルキル(メタ)アクリレートポリマー(b-1)>
分散容器に、脱イオン水300部、ポリビニルアルコール2部を入れた。これとは別に、2,2,2-トリフルオロエチルメタクリレート95部、エチレングリコールジメタクリレート5部およびラウリルパーオキサイド1部からなる単量体溶液を調製し、上記の分散容器に加えた。得られた混合液に対してホモミキサーを用いて分散処理を行い、液滴径を100nmに調整した分散液を得た。
上記の方法にて得られた含フッ素アルキル(メタ)アクリレートポリマー(b-1)を使用し、シリンダ温度を200℃に温度調整した40mmφ単軸押出機(大阪精機工作(株)製)を使用し、スクリュー回転数75rpm、吐出量10kg/時間にて溶融混練を行い、ストランド状に引き取り、水槽にて冷却後、ペレタイザーを用いて切断して、フッ素樹脂の樹脂ペレット(C-1)を製造した。
フッ素樹脂として、得られた含フッ素アルキル(メタ)アクリレートポリマー(b-1)を使用し、シリンダ温度200~240℃、スクリュー回転数125rpm、吐出量15kg/時間に変更した以外は、製造例1と同様の操作にてフッ素樹脂の樹脂ペレット(C-2)を製造した。
<アクリル系弾性体グラフト共重合体(a1-1)>
攪拌機付き8L重合装置に、以下の物質を仕込んだ。
脱イオン水 200部
ジオクチルスルフォコハク酸ナトリウム 0.25部
ソディウムホルムアルデヒドスルフォキシレ-ト 0.15部
エチレンジアミン四酢酸-2-ナトリウム 0.001部
硫酸第一鉄 0.00025部
重合機内を窒素ガスで充分に置換し実質的に酸素のない状態とした後、内温を60℃にし、下記単量体混合物(a1-1a)30重量部および2-(2’-ヒドロキシ-5’-メタクリロイルオキシエチルフェニル)-2-H-ベンゾトリアゾール(大塚化学(株)製、RUVA-93)0.5部からなる混合物を10重量部/時間の割合で連続的に添加し、添加終了後、さらに0.5時間重合を継続し、アクリル酸エステル系架橋弾性体粒子(平均粒子径d=60nm)を得た。重合転化率は99.5%であった。
単量体混合物(a1-1a):
・ビニル系単量体混合物(アクリル酸ブチル(BA)90%およびメタクリル酸メチル(MMA)10%) 100部
・アリルメタクリレート(AlMA) 1部
・クメンハイドロパーオキサイド(CHP) 0.2部
その後、ジオクチルスルフォコハク酸ナトリウム0.05重量部を仕込んだ後、内温を60℃にし、ビニル系単量体混合物(BA10%およびMMA90%)100部、ターシャリードデシルメルカプタン(t-DM)0.5部およびCHP0.5部からなる単量体混合物(a1-1b)70部を10部/時間の割合で連続的に添加し、さらに1時間重合を継続し、アクリル系弾性体グラフト共重合体(a1-1)(平均粒子径=180μm)を得た。重合転化率は98.2%であった。得られたラテックスを塩化カルシウムで塩析、凝固し、水洗、乾燥して樹脂粉末(a1-1)を得た。
メタクリル系重合体(a1-2)として、メタクリル酸メチル/アクリル酸メチル共重合体(住友化学(株)製、スミペックスLG、ビーズ状物)を使用した。
上記の如く得られたアクリル系弾性体グラフト共重合体(a1-1)70部およびメタクリル系重合体(a1-2)30部をヘンシェルミキサーを用いて混合した後、シリンダ温度を200℃~260℃に温度調整した40mmφ単軸押出機(大阪精機工作(株)製)を使用し、スクリュー回転数90rpm、吐出量15kg/時間にて溶融混練を行い、ストランド状に引き取り、水槽にて冷却後、ペレタイザーを用いて切断して、アクリル系樹脂の樹脂ペレット(A-1)を製造した。
フッ素樹脂として、製造例1で得られた含フッ素アルキル(メタ)アクリレートポリマー(b-1)80部と製造例2で得られたアクリル系弾性体グラフト共重合体20部の混合物を使用した以外は、製造例2と同様の操作にて、フッ素樹脂の樹脂ペレット(C-3)を製造した。
<アクリル系弾性体グラフト共重合体(a2-1)>
攪拌機、温度計、窒素ガス導入管、モノマー供給管、還流冷却器を備えた8リットル重合機に以下の物質 を仕込んだ。
水(イオン交換水) 200部
ナトリウムホルムアルデヒドスルホキシレート 0.15部
硫酸第一鉄・2水塩 0.0015部
エチレンジアミン四酢酸-2-ナトリウム 0.006部
ジオクチルスルホコハク酸ナトリウム 0.0015部
重合器内を窒素ガスで十分に置換して実質的に酸素のない状態とした後、内温を60℃にし、ビニル系単量体混合物(BA84%、MMA8%およびスチレン(ST)8%)100部、AlMA1部およびCHP0.1部からなる単量体混合物(a2-1a)50部を15部/時間の割合で連続的に添加し、添加終了後、さらに1時間重合を継続し、アクリル酸エステル系架橋弾性体粒子(a2-1a)(平均粒子径d=210nm)を得た。重合転化率は98.5%であった。
メタクリル系重合体(a2-2)として、メタクリル酸メチル/アクリル酸メチル共重合体(住友化学(株)製、スミペックスEX、ビーズ状物)を使用した。
上記の如く得られたアクリル系弾性体グラフト共重合体(a2-1)25部およびメタクリル系重合体(a2-2)75部、紫外線吸収剤としてチヌビン234(チバジャパン製)1.0部をヘンシェルミキサーを用いて混合した後、シリンダ温度を240℃に温度調整した以外は、製造例2と同様にして、アクリル系樹脂の樹脂ペレット(A-2)を製造した。
フッ素樹脂として、ポリフッ化ビニリデン(SOLVAY社製、SOLEF-1008)100部のみを用い、シリンダ温度を260℃に変更した以外は、製造例2と同様の方法にて、フッ素樹脂の樹脂ペレット(C-4)を製造した。
フッ素樹脂として、エチレン-テトラフルオロエチレン共重合体(旭硝子(株)製、フルオンETFE AH-2000)100部のみを用いた以外は、比較製造例2と同様の方法にて、フッ素樹脂の樹脂ペレット(C-5)を製造した。
フッ素樹脂として、製造例1で得られた含フッ素アルキル(メタ)アクリレートポリマー(b-1)100部とポリフッ化ビニリデン10部の混合物を使用した以外は、製造例3と同様の操作にてフッ素樹脂の樹脂ペレット(C-6)を製造した。
フッ素樹脂として、製造例1で得られた含フッ素アルキル(メタ)アクリレートポリマー(b-1)100部とポリフッ化ビニリデン0.1部の混合物を使用した以外は、製造例1と同様の操作にてフッ素樹脂の樹脂ペレット(C-7)を製造した。
(実施例1)
製造例1で得られたフッ素樹脂の樹脂ペレット(C-1)を、Tダイ付40mmφ単軸押出機を用いて、シリンダ設定温度160~220℃にて吐出量10kg/hrにて溶融混練し、ダイス温度240℃にて、厚み125μmの単層樹脂フィルムを得た。
製造例2で得られたフッ素樹脂の樹脂ペレット(C-2)を使用し、Tダイ付40mmφ単軸押出機のシリンダ設定温度180~240℃に変更した以外は、実施例1と同様の操作にて、厚み125μmの単層樹脂フィルムを得た。
製造例2で得られたアクリル系樹脂の樹脂ペレット(A-1)を用いた以外は、実施例1と同様の操作にてアクリル系樹脂単層フィルムを得た。
比較製造例1で得られたフッ素樹脂の樹脂ペレット(C-4)を用いた以外は、実施例1と同様の操作にてフッ素樹脂単層フィルムを得た。
(実施例3)
製造例3で得られたアクリル系樹脂の樹脂ペレット(A-1)をベース樹脂とし、製造例2で得られたフッ素樹脂の樹脂ペレット(C-2)を表面層樹脂として、以下の共押出方法により、厚み125μm(ベース樹脂層110μmおよび表層樹脂層15μm)の積層フィルムを得た。
表面層樹脂を、製造例4で得られたフッ素樹脂の樹脂ペレット(C-3)に変更した以外は、実施例3と同様の操作により、積層フィルムを得た。
ベース樹脂を、製造例5で得られたアクリル系樹脂の樹脂ペレット(A-2)に変更した以外は、実施例3と同様の操作により、積層フィルムを得た。
表面層樹脂を、比較製造例1で得られたフッ素樹脂の樹脂ペレット(C-4)に変更した以外は、実施例3と同様の操作により、積層フィルムを得た。
表面層樹脂を、比較製造例2で得られたフッ素樹脂の樹脂ペレット(C-5)に変更した以外は、実施例3と同様の操作により、積層フィルムを得た。
(実施例6)
製造例6で得られたフッ素樹脂の樹脂ペレット(C-6)を用いた以外は、実施例2と同様の操作にてフッ素樹脂単層フィルムを得た。
(実施例7)
表面層樹脂を、製造例6で得られたフッ素樹脂の樹脂ペレット(C-6)に変更した以外は、実施例3と同様の操作により、積層フィルムを得た。
表面層樹脂を製造例7で得られたフッ素樹脂ペレット(C-7)に変更し、共押出に用いるTダイを2種2層Tダイ(スタックプレート方式)にした以外は、実施例3と同様の操作により、積層フィルムを得た。
表面層樹脂として、製造例6で得られたフッ素樹脂の樹脂ペレット(C-6)を使用し、積層フィルムの厚みをベース樹脂層85μmおよび表層樹脂層40μmに変更した以外は、実施例3と同様の操作により、積層フィルムを得た。
Claims (12)
- 含フッ素アルキル(メタ)アクリレートポリマー成分を含むフッ素系(メタ)アクリル樹脂(B)
を含むフッ素樹脂(C)を成形してなるフッ素樹脂フィルム。 - 含フッ素アルキル(メタ)アクリレートポリマー成分の含有量が、フッ素系(メタ)アクリル樹脂(B)100重量%において80重量%以上である、請求項1に記載のフッ素樹脂フィルム。
- フッ素樹脂(C)がポリフッ化ビニリデンを含有する、請求項1または2に記載のフッ素樹脂フィルム。
- ポリフッ化ビニリデンの含有量が、フッ素系(メタ)アクリル樹脂(B)100重量部に対し、0.1~10重量部である、請求項3に記載のフッ素樹脂フィルム。
- フッ素系(メタ)アクリル樹脂(B)の溶融粘度が、JIS K7199に基づく、ダイス温度220℃、剪断速度122sec-1、キャピラリーダイ径1mmの条件下において300~4000Pa・secである、請求項1~5のいずれかに記載のフッ素樹脂フィルム。
- 請求項1~5のいずれかに記載のフッ素樹脂フィルム層が、アクリル系樹脂(A)からなるフィルム層の少なくとも片面に積層されてなる、フッ素樹脂積層アクリル系樹脂フィルム。
- アクリル系樹脂(A)が、
アクリル系弾性体グラフト共重合体(a-1)5~100重量%およびメタクリル系重合体(a-2)0~95重量%からなるアクリル系樹脂組成物[(a-1)および(a-2)の合計量が100重量%]であって、
アクリル系弾性体グラフト共重合体(a-1)が、アクリル酸アルキルエステル50~99.9重量%、共重合可能な他のビニル系単量体0~49.9重量%および共重合可能な1分子当たり2個以上の非共役二重結合を有する多官能性単量体0.1~10重量%からなる単量体混合物(a-1a)を重合してなる少なくとも一層のアクリル酸エステル系架橋弾性体5~85重量部の存在下に、
メタクリル酸アルキルエステル50~100重量%および共重合可能な他のビニル系単量体0~50重量%からなる単量体混合物(a-1b)を95~15重量部共重合してなる[(a-1a)および(a-1b)の合計量が100重量部]ものであり、
メタクリル系重合体(a-2)が、メタクリル酸アルキルエステル80~100重量%および共重合可能な他のビニル系単量体0~20重量%からなる単量体混合物を共重合してなるものである、請求項6に記載のフッ素樹脂積層アクリル系樹脂フィルム。 - 前記アクリル酸エステル系架橋弾性体の平均粒子径d(nm)と、前記共重合可能な1分子当たり2個以上の非共役二重結合を有する多官能性単量体の量w(重量%)とが、関係式:0.02d≦w≦0.06dを満たす、請求項7に記載のフッ素樹脂積層アクリル系樹脂フィルム。
- 前記アクリル系樹脂(A)のメチルエチルケトン可溶分の還元粘度が0.2~0.8dl/gである、請求項7または8に記載のフッ素樹脂積層アクリル系樹脂フィルム。
- 全体の厚みが30~300μmであり、かつ、フッ素樹脂フィルム層の厚みが1~30μmである、請求項6~9のいずれかに記載のフッ素樹脂積層アクリル系樹脂フィルム。
- 請求項1~5のいずれかに記載のフッ素樹脂フィルムを積層してなる成形品。
- 請求項6~10のいずれかに記載のフッ素樹脂積層アクリル系樹脂フィルムを積層してなる成形品。
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JP2010516865A JP5681488B2 (ja) | 2008-06-10 | 2009-06-10 | フッ素樹脂フィルム及びそれを含む成形品 |
CN200980121886.2A CN102056984B (zh) | 2008-06-10 | 2009-06-10 | 氟树脂膜和氟树脂层叠丙烯酸类树脂膜 |
US12/997,451 US10253143B2 (en) | 2008-06-10 | 2009-06-10 | Fluororesin film and fluororesin-laminated acrylic resin film |
EP09762501.6A EP2292692A4 (en) | 2008-06-10 | 2009-06-10 | FLUORIN RESIN AND FLUORIDE-LAMINATED ACRYLIC RESIN FOIL |
KR1020107027789A KR101346872B1 (ko) | 2008-06-10 | 2009-06-10 | 불소 수지 필름 및 불소 수지 적층 아크릴계 수지 필름 |
KR1020107027772A KR101228690B1 (ko) | 2008-06-10 | 2009-06-10 | 불소 수지 필름 및 불소 수지 적층 아크릴계 수지 필름 |
US13/034,022 US9074058B2 (en) | 2008-06-10 | 2011-02-24 | Fluororesin film and fluororesin-laminated acrylic resin film |
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US13/034,022 Division US9074058B2 (en) | 2008-06-10 | 2011-02-24 | Fluororesin film and fluororesin-laminated acrylic resin film |
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JP2011168681A (ja) * | 2010-02-17 | 2011-09-01 | Kaneka Corp | フッ素系(メタ)アクリル樹脂、そのフッ素系樹脂組成物、そのフッ素系樹脂フィルムおよびフッ素系樹脂積層アクリル系樹脂フィルム |
EP2537869A1 (en) * | 2010-02-17 | 2012-12-26 | Kaneka Corporation | Fluorine-containing (meth)acrylic (co)polymer and molded body films thereof |
US20130052440A1 (en) * | 2010-02-17 | 2013-02-28 | Kaneka Corporation | Fluorine-containing (meth) acrylic (co) polymer and molded body films thereof |
EP2537869A4 (en) * | 2010-02-17 | 2014-05-14 | Kaneka Corp | FLUOROUS (METH) ACRYLIC (CO) POLYMER AND FORM BODY FILMS THEREOF |
US9365016B2 (en) | 2010-02-17 | 2016-06-14 | Kaneka Corporation | Fluorine-containing (meth) acrylic (co) polymer and molded body films thereof |
JP5997607B2 (ja) * | 2010-02-17 | 2016-09-28 | 株式会社カネカ | 含フッ素(メタ)アクリル樹脂フィルム、その積層樹脂フィルム、及び、積層成形品 |
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JP5930971B2 (ja) * | 2010-12-01 | 2016-06-08 | 日産化学工業株式会社 | 表面改質された押出成形フィルム |
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CN102275366A (zh) | 2011-12-14 |
CN102056984B (zh) | 2014-07-16 |
US20110151229A1 (en) | 2011-06-23 |
EP2325005B1 (en) | 2015-11-11 |
JP2014139019A (ja) | 2014-07-31 |
EP2292692A1 (en) | 2011-03-09 |
JPWO2009151071A1 (ja) | 2011-11-17 |
KR101228690B1 (ko) | 2013-02-01 |
JP5681488B2 (ja) | 2015-03-11 |
US10253143B2 (en) | 2019-04-09 |
US9074058B2 (en) | 2015-07-07 |
CN102056984A (zh) | 2011-05-11 |
JP5698709B2 (ja) | 2015-04-08 |
KR101346872B1 (ko) | 2014-01-02 |
CN104044323B (zh) | 2017-06-30 |
JP2012187934A (ja) | 2012-10-04 |
EP2325005A3 (en) | 2011-06-29 |
US20110124816A1 (en) | 2011-05-26 |
JP5771713B2 (ja) | 2015-09-02 |
EP2325005A2 (en) | 2011-05-25 |
KR20110007252A (ko) | 2011-01-21 |
EP2292692A4 (en) | 2014-06-18 |
KR20110009223A (ko) | 2011-01-27 |
CN104044323A (zh) | 2014-09-17 |
CN102275366B (zh) | 2014-10-15 |
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