WO2006016618A1 - フッ化ビニリデン系樹脂フィルム - Google Patents
フッ化ビニリデン系樹脂フィルム Download PDFInfo
- Publication number
- WO2006016618A1 WO2006016618A1 PCT/JP2005/014684 JP2005014684W WO2006016618A1 WO 2006016618 A1 WO2006016618 A1 WO 2006016618A1 JP 2005014684 W JP2005014684 W JP 2005014684W WO 2006016618 A1 WO2006016618 A1 WO 2006016618A1
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- WIPO (PCT)
- Prior art keywords
- vinylidene fluoride
- fluoride resin
- methacrylic
- weight
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C08F2/00—Processes of polymerisation
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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
- B32B27/06—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
- B32B27/30—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
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and 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
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/08—Vinylidene chloride
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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
- C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F214/18—Monomers containing fluorine
- C08F214/22—Vinylidene fluoride
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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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- 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
- C08J2327/00—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 at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/16—Homopolymers or copolymers of vinylidene fluoride
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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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
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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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
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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
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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
- Y10T428/31544—Addition polymer is perhalogenated
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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]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
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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]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31928—Ester, halide or nitrile of addition polymer
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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]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31935—Ester, halide or nitrile of addition polymer
Definitions
- the present invention relates to a vinylidene fluoride resin film having excellent transparency and a vinyl fluoride.
- -It relates to a redene-based resin multilayer film.
- Vinylidene fluoride resin which has excellent weather resistance and chemical resistance, and can be melt-molded, is used as a surface protection film for tents and truck hoods in simple warehouses. It is widely used as a protective film for signs, building materials, and automobile exterior films.
- the vinylidene fluoride resin is a crystalline resin and has a high crystallization rate, it has been very difficult to satisfy transparency.
- Patent Document 1 film thin films
- Patent Document 2 copolymerization of other monomers with vinylidene fluoride resin
- Patent Document 3 mixing with methacrylic resin
- the molding conditions during processing of the vinylidene fluoride resin film for example, the discharge speed, the take-up speed, the residence time, the difference between the die temperature and the refrigerant temperature, etc.
- the polyvinyl fluoride resin is controlled.
- a method to improve the transparency by reducing the spherulite radius of redene has been proposed (see Patent Document 4), but it is difficult to suppress the average spherulite radius to less than 0.5 m due to limitations on the device Therefore, further improvement in transparency was demanded.
- Patent Document 1 JP-A-57-187248
- Patent Document 2 JP-A-64-8665
- Patent Document 3 JP-A-5-50566
- Patent Document 4 JP-A-6-80794
- the present invention provides:
- a polyvinylidene fluoride resin film having an average spherulite diameter of poly (vinylidene fluoride) of less than 1.0 m (claim 1)
- the vinylidene fluoride resin film according to claim 1 which has a haze value of less than 1% (claim 2), and is formed by being sandwiched between a mouthpiece or a metal belt.
- Vinylidene-based resin film (Claim 3) which has a haze value of less than 1% (claim 2), and is formed by being sandwiched between a mouthpiece or a metal belt.
- the vinylidene fluoride resin is a composition comprising 50 to 99.9 parts by weight of vinylidene fluoride resin (D) and 1 to 50 parts by weight of a methacrylic resin composition (C) O.
- a vinylidene fluoride resin multilayer film comprising a vinylidene fluoride resin layer according to claim 1 and a methacrylic resin composition (C) layer for forming a surface layer.
- Claim The vinylidene fluoride resin multilayer film according to claim 5, wherein the vinylidene fluoride resin layer and the methacrylic resin composition (C) are coextruded (Claim 6),
- Acrylic ester-based crosslinked elastic particles (B) ⁇ A monomer mixture containing 50 to 100% by weight of acrylic acid alkyl ester and 50 to 0% by weight of methacrylic acid alkyl ester (b) and 2 per molecule Obtained by copolymerizing a polyfunctional monomer having at least one non-conjugated double bond,
- the content of acrylic ester-based crosslinked elastic particles (B) is 5 to 45% by weight
- Methacrylic resin composition (C) Methacrylic resin obtained by copolymerizing 0.01 to 30 parts by weight of the ultraviolet absorber represented by the general formula (1) with respect to 100 parts by weight A fat composition,
- X is H or halogen
- R is H, methyl or a t-alkyl group having 4 to 6 carbon atoms
- R is a linear or branched carbon number of 2 to: an alkylene group of LO, R is H or methyl
- a laminated product in which the vinylidene fluoride resin film or the vinylidene fluoride resin multilayer film according to any one of claims 1 to 7 is laminated (Claim 8) and
- Laminated product according to claim 8 manufactured by injection molding (Claim 9)
- the vinylidene fluoride resin film and the vinylidene fluoride resin multilayer film of the present invention have transparency problems by being sandwiched between rolls or metal belts and cooled while being pressurized. It is excellent in weather resistance, chemical resistance, bending cracking resistance and moldability, which are necessary characteristics of the film.
- FIG. 1 Transmission electron micrograph of Example 1 (magnification: 10,000 times); the black-colored layer (surface layer) is a vinylidene fluoride-based resin layer, as seen in Fig. 2 No spherulite structure is observed and the detection limit is 0.1 / ⁇ ⁇ >.
- FIG. 2 Transmission electron microscopic photograph of Comparative Example 1 (magnification 10,000 times); the black-colored layer (surface layer) is a vinylidene fluoride-based resin layer with an average diameter of 3. O / Zm spherulites are observed.
- the vinylidene fluoride resin film in the present invention is a vinylidene fluoride resin film having an average spherulite diameter of polyvinylidene fluoride of less than 1. O / zm. Preferably, it is less than 0.6 m, more preferably less than 0.1 ⁇ m which is the detection limit.
- the average spherulite diameter of polyvinylidene fluoride is 1. O / zm or more, the obtained vinylidene fluoride resin There is a tendency that the transparency of the film is not satisfactory.
- the average spherulite diameter D of the polyvinylidene fluoride in the present invention is a transmission electron microscope.
- a specimen is prepared by a frozen ultrathin section method for a vinylidene fluoride resin film, and then a transmission electron microscope (manufactured by JEOL Ltd., JEM) is used.
- — 1200EX was used to measure the crystal diameter of poly (vinylidene fluoride) when observed at a magnification of 10,000 times at a speed of 80 kV ⁇ detection limit: 0.1 / ⁇ ⁇ >.
- the average crystal diameter was determined by measuring the spherulite diameter of 50 spherulites in an electron microscopic observation photograph using a caliper.
- a poly (vinylidene fluoride) resin film is shifted by 45 degrees and 8 sheets are stacked to prepare a measurement sample, and then a He—Ne gas laser (Neoarc Corporation, NEO) is used as a laser light source.
- a He—Ne gas laser Neoarc Corporation, NEO
- a PDA detector Hamamatsu Photonics Co., Ltd., photodiode array S6494-128
- the average spherulite radius R was calculated by the formula of Q. In this case, the average spherulite diameter is max 0
- the acrylic resin composition (C) layer is dissolved by being immersed in black mouth form, and the vinylidene fluoride resin film is dissolved.
- the resin layer (film) was taken out and used as data for small-angle light scattering measurement.
- the vinylidene fluoride resin film in the present invention has a haze value of 1% or less. It is preferably 0.9% or less, more preferably 0.8% or less. When the haze value of polyvinylidene fluoride exceeds 1%, the transparency of the resulting vinylidene fluoride resin film tends to be unsatisfactory.
- the haze value is a value measured under the conditions of a temperature of 23 ° C ⁇ 2 ° C and a humidity of 50% ⁇ 5% in accordance with JIS K6714. In the multilayer film with the methacrylic resin composition (C), the haze value of the entire film is almost the same as that of the polyvinylidene fluoride resin layer. The layer was measured.
- the vinylidene fluoride resin film in the present invention is immediately after being discharged from an extruder. It is obtained by a method in which a melted vinylidene fluoride resin is sandwiched between rolls or metal belts, cooled while being pressed, and molded. If it is cooled simply by contacting a roll or metal belt without sandwiching molten vinylidene fluoride resin, the average spherulite diameter cannot be reduced to less than 1.0 m. The transparency of the film cannot be satisfied. In addition, when the molten vinylidene fluoride resin is sandwiched between rolls or metal belts and molded, the surface can be smoothed with a force if the average spherulite diameter can be reduced.
- the temperature of the roll or metal belt it is preferable to maintain the temperature of the roll or metal belt at 10 ° C to 100 ° C, more preferably 20 ° C to 60 ° C. . If the temperature of the roll or metal belt exceeds 100 ° C, the transparency of the obtained film tends to be poor, and if it is less than 10 ° C, there is a problem such as a film entering into the film at the time of cutting. May occur.
- the temperature of the roll or metal belt is set to be the vinylidene fluoride resin composition. It is preferable to keep the physical side at 10 ° C to 80 ° C and the methacrylic resin composition (C) side at 10 ° C to 100 ° C! Further, vinylidene fluoride-based resin composition side and methacrylic-based resin composition
- the distance force from the lip of the die of the extruder to contact with the roll or metal belt is preferably 300 mm or less, and preferably 250 mm or less. Is more preferable. By setting the distance until contact to 300 mm or less, the time until the molten resin is sandwiched can be shortened, and the effect of the sandwiching can be increased.
- the roll or metal belt used in the present invention preferably has an average surface roughness of 0.5 m or less, more preferably 0.2 m or less.
- the average surface roughness of the tool or the metal belt is 0.5 ⁇ m or less, the obtained film can be smoothed and the transparency can be further increased.
- the material of the roll used in the present invention is not particularly limited, but is preferably silicon or metal.
- the vinylidene fluoride resin (D) in the present invention is a homopolymer of vinylidene fluoride, a copolymer containing 70 mol% or more of vinylidene fluoride as a structural unit, It may be a mixture of these polymers.
- Examples of the monomer copolymerized with vinylidene fluoride include ethylene, propylene, tetrafluoroethylene, propylene hexafluoride, trifluoroethylene, trifluoride-ethylene, ethylene fluoride, and the like. These monomers may be used alone or in combination of two or more.
- the melting point of these vinylidene fluoride resins is in the range of 145 to 180 ° C.
- the vinylidene fluoride resin (D) in the present invention is 165 ° C or more. It is preferable. If the melting point of fluorinated vinylidene resin (D) is 165 ° C or higher, the transparency after secondary processing such as insert molding, in-mold molding, and lamination with hot rolls will be reduced. It can be prevented.
- the vinylidene fluoride resin film in the present invention may be formed of only the vinylidene fluoride resin (D). However, transparency and a methacrylic resin composition ( From the viewpoint of adhesion to C) or the layered object, vinylidene fluoride resin (D) 50 to 99.9 parts by weight and methacrylic resin composition (C) 0.1 to 50 It is preferable that the composition force of the weight part force is formed. More preferably, the vinylidene fluoride resin (D) is 60 to 99.9 parts by weight and the methanolic resin composition (C) O.
- methacrylic resin composition (C) By containing 0.1 part by weight or more of the methacrylic resin composition (C), it is possible to improve transparency and adhesiveness. If the vinylidene fluoride resin (D) is less than 50 parts by weight, the chemical resistance tends to decrease.
- the methacrylic resin composition (C) in the present invention is not particularly limited, but the methacrylic acid ester polymer (A) is converted into the acrylate ester crosslinked elastic particle (B).
- a multilayer structure polymer obtained by polymerization in the presence is preferred. Further, it is more preferable that the metatalic acid ester polymer (A) and the acrylate ester cross-linked elastic particles (B) have the following composition ranges.
- the methacrylic resin composition (C) in the present invention comprises a methacrylic ester polymer (A), an acrylate ester cross-linked elastic particle (B), and a methacrylic ester polymer (A). Even a three-layer structure polymer that polymerizes step by step does not work.
- methacrylic acid ester polymer (A) in the present invention a monomer mixture comprising 0 to 50 wt% methacrylic acid alkyl ester le 50-100 wt 0/0 and acrylic acid alkyl esters, at least one stage
- the polymerization is performed as described above. More preferably, the alkyl methacrylate ester is 60 to 100 weights. / 0 , and alkyl acrylate ester 0 to 40% by weight. When the amount of the alkyl acrylate exceeds 50% by weight, the heat resistance and surface hardness of the film that can be formed from the resulting methacrylic resin composition tend to decrease.
- the methacrylic acid alkyl ester constituting the methacrylic acid ester polymer (A) in the present invention is preferably one in which the alkyl group has 1 to 12 carbon atoms from the viewpoint of polymerization reactivity and cost. It may be chained or branched. Specific examples thereof include methyl methacrylate, ethyl acetate, propyl methacrylate, n-butyl methacrylate, isoptyl methacrylate, t-butyl methacrylate and the like. These monomers may be used alone or in combination of two or more.
- the alkyl acrylate ester constituting the methacrylic acid ester polymer (A) in the present invention is preferably a straight chain having an alkyl group with 1 to 12 carbon atoms in terms of polymerization reactivity and cost. Or branched. Specific examples include, for example, methyl acrylate, ethyl acrylate, propyl acrylate, n-butyl acrylate, isobutyl acrylate, t-butyl acrylate, 2-ethylhexyl acrylate, and n-octyl acrylate. Etc. These monomers may be used alone or in combination of two or more.
- methacrylic acid ester polymer (A) of the present invention if necessary, an ethylenic unsaturated monomer copolymerizable with a methacrylic acid alkyl ester and an acrylic acid alkyl ester is copolymerized. It ’s okay.
- copolymerizable ethylenically unsaturated monomers include, for example, halogenated vinyls such as vinyl chloride and bromobromide, cyanide burs such as talari-tolyl and meta-talin-tolyl, butyrate formate, and butyl acetate.
- Propio Butyl esters such as butyl acid, aromatic bur derivatives such as styrene, butyltoluene and ⁇ -methylstyrene, halogen vinylidene such as salt vinylidene, acrylic acid such as acrylic acid, sodium acrylate and calcium acrylate, and Its salts, acrylic acid alkyl ester derivatives such as acrylic acid-hydroxychetyl, dimethylaminoethyl acrylate, glycidyl acrylate, acrylamide, and methylolacrylamide, methacrylic acid such as methacrylic acid, sodium methacrylate, calcium methacrylate, and the like And alkyl methacrylate ester derivatives such as salts, methacrylamide, j8-hydroxyethyl methacrylate, dimethylaminoethyl methacrylate, and glycidyl methacrylate.
- These monomers may be used alone or in combination of two or more.
- acrylic ester cross-linked elastic particles (B) in the present invention a monomer mixture comprising an alkyl acrylate 50-100 wt 0/0 and methacrylic acid alkyl ester 50 to 0 weight 0/0 (b ) And a mixture of polyfunctional monomers having two or more non-conjugated double bonds per molecule are copolymerized in at least one stage.
- Monomer mixture (b) is more preferably an alkyl acrylate ester 60 to: LOO weight 0/0 and methacrylic acid alkyl ester 40-0 wt 0/0. If the methacrylic acid alkyl ester exceeds 50% by weight, the bending crack resistance of the film that can be formed from the resulting methacrylic resin composition tends to be lowered.
- acrylic ester-based crosslinked elastic particles (B) of the present invention if necessary, an ethylenically unsaturated monomer copolymerizable with a methacrylic acid alkyl ester and an acrylic acid alkyl ester. You can copolymerize the polymer.
- the acrylic ester-based crosslinked elastic particles (B) in the present invention are copolymerized with a polyfunctional monomer having two or more non-conjugated reactive double bonds per molecule.
- the resulting polymer exhibits cross-linking elasticity.
- one reactive functional group (double bond) left unreacted during polymerization of the acrylic ester-based crosslinked elastic particles (B) serves as a graft crossover point, and a certain proportion of the methacrylate ester-based copolymer.
- Combined (A) force Acrylate ester grafted on crosslinked elastic particles (B).
- the acrylic ester-based crosslinked elastic particles (B) are dispersed discontinuously and uniformly in the 1S methacrylate copolymer (A).
- Examples of the polyfunctional monomer used in the present invention include: arylalkylate, arylalkylate, triallyl cyanurate, triallyl isocyanurate, diallyl phthalate, diarynolemalate. , Dibi-norea diphosphate, dibutenebenzene ethylene glycol dimethacrylate, dibutenebenzene ethylene glycol diathalate, diethylene glycol dimethacrylate, diethylene glycol diacrylate, triethylene glycol dimethacrylate, triethylene glycol Diatalylate, trimethylolpropane trimethacrylate, trimethylolpropane tritalate, tetramethylolmethane tetramethacrylate, tetramethyl methanetetraacrylate, dipropylene glycol dimethacrylate And dipropylene glycol ditalylate. These may be used alone or in combination of two or more.
- the added amount of the polyfunctional monomer in the acrylate-based crosslinked elastic particle (B) of the present invention is 0.05 to 20 with respect to 100 parts by weight of the monomer mixture (b). Parts by weight are preferred, 0.1 to: LO parts by weight are more preferred. If the addition amount of the polyfunctional monomer is less than 0.05 parts by weight, the impact resistance and bending cracking resistance of the film that can be formed from the methacrylic resin composition tends to decrease. Even if it exceeds the parts by weight, impact resistance and bending cracking resistance tend to decrease.
- acrylic ester alkyl ester the methacrylic acid alkyl ester, and the ethylenically unsaturated monomer copolymerizable therewith used in the acrylic ester cross-linked elastic particle (B) of the present invention are as described above.
- examples thereof include those used for the methacrylic ester polymer (A).
- the content of the acrylic ester-based crosslinked elastic particles (B) in the present invention is preferably 5 to 45% by weight when the entire methacrylic resin composition (C) is 100% by weight. 10-40% by weight is more preferred 15-35% by weight is even more preferred.
- the content of acrylic ester-based bridge elastic particles (B) is less than 5% by weight, the resulting methacrylic resin composition tends to decrease the impact resistance and bending cracking resistance of the film that can be formed. If it exceeds 45% by weight, the hardness and formability of the film tend to decrease.
- the methacrylic resin composition (C) in the present invention is a methacrylic resin composition obtained by copolymerizing an ultraviolet absorber represented by the general formula (1).
- X is H or halogen
- R is H, methyl or a t-alkyl group having 4 to 6 carbon atoms
- R is a linear or branched carbon number of 2 to: an alkylene group of LO, R is H or methyl
- the ultraviolet absorber represented by the general formula (1) in the present invention is 2- (2′-hydroxy-5′-methacryloyloxystilphenyl) 2H-benzotriazole, and 2- (2 ′ —Hydroxy—5, —Ataryllooxychetylphenol) —2H benzotriazole, 2- (2′-hydroxy 5′—methacryloyloxychetilphenyl) 2H benzotriazole, 2— (2 ′ —Hydroxy-5′-methacryloyloxychetylphenol) 5 Chromium 1H 2 benzotriazole, 2- (2′—Hydroxy-5′-methacryloyloxypropylphenol) 2H benzotriazole 2 — (2,1-hydroxy-1,5-methacryloyloxychetyl-3, -t-butylphenol) -2H benzotriazole. More preferred is 2- (2,1hydroxy-1,5, methacryloyloxyethyl) 2H-benz
- the copolymerization ratio of the ultraviolet absorber represented by the general formula (1) in the present invention is preferably 0.01 to 30 parts by weight with respect to 100 parts by weight of the methacrylic resin composition (C). 01 to 25 parts by weight is more preferred 0. 01 to 20 parts by weight is even more preferred 0. 05 to 20 parts by weight is particularly preferred. If the copolymerization ratio of the ultraviolet absorber represented by the general formula (1) is less than 0.01 parts by weight, the weather resistance of the resulting methacrylic resin composition that can be formed tends to be reduced. If it exceeds, the impact resistance and bending cracking resistance of the film tend to decrease.
- the copolymerization of the ultraviolet absorber represented by the general formula (1) in the present invention may be copolymerized in a misaligned layer of the methacrylic resin composition (C).
- UV absorbers that are preferably copolymerized with acrylic ester-based crosslinked elastic particles (B) that are not only methacrylic acid ester copolymers (A) are methacrylic resin compositions ( C) More preferably, it is uniformly copolymerized throughout.
- the method for producing the methacrylic resin composition (C) in the present invention 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 method for copolymerizing the ultraviolet absorber represented by the general formula (1) in the present invention is not particularly limited, and it is preferable to perform copolymerization during the production of the methacrylic resin composition (C).
- the copolymerization method a known emulsion polymerization method, emulsion suspension polymerization method, suspension polymerization method, bulk polymerization method or solution polymerization method can be applied, and the emulsion polymerization method is particularly preferable.
- initiators such as organic peroxides, inorganic peroxides, and azo compounds are used.
- organic peroxides such as organic peroxides, inorganic peroxides, and azo compounds
- t-ptylnoide peroxide 1,1,3,3-tetramethylbutylnoxide peroxide
- succinic acid peroxide succinic acid peroxide
- peroxymaleic acid t-butyl ester cumene hydride oral peroxide
- benzoate Organic peroxides such as ilperoxide, inorganic peroxides such as potassium persulfate and sodium persulfate, and oil-soluble initiators such as azobisisobutyl-tolyl are also used.
- These may be used alone or in combination of two or more.
- These initiators are sodium sulfite, sodium thiosulfate, sodium formaldehyde sulfoxylate, ascorbic acid, hydroxyacetic acid, ferrous sulfate, ferrous sulfate and a complex of disodium ethylenediamine tetraacetate. It may be used as a normal redox type initiator in combination with.
- the organic peroxide may 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 to a monomer, a method of adding it dispersed in an emulsifier aqueous solution, or the like.
- a method of adding to a monomer or a method of adding it by dispersing in an aqueous emulsifier solution is preferred.
- the organic peroxide is a divalent iron salt or the like in terms of polymerization stability and particle size control. It is preferably used as a redox initiator in combination with an organic reducing agent such as Z or formaldehyde sulfoxylate sodium, reducing sugar, ascorbic acid and the like.
- the surfactant used in the emulsion polymerization is not particularly limited as long as it is a normal surfactant for emulsion polymerization.
- anionic surfactants such as sodium alkyl sulfonate, sodium alkyl benzene sulfonate, sodium dioctyl sulfosuccinate, sodium lauryl sulfate, and sodium fatty acid, alkyl phenols, and aliphatic alcohols
- Nonionic surfactants such as reaction products with propylene oxide and ethylene oxide are shown. These surfactants may be used alone or in combination of two or more. If necessary, you can use a cationic surfactant such as an alkylamine salt!
- the obtained methacrylic resin composition (C) latex is separated and collected by normal coagulation, washing and drying operations, or by treatment such as spray drying and freeze drying. Is done.
- the vinylidene fluoride resin composition of the present invention (vinylidene fluoride resin (D) or vinylidene fluoride resin (D) and methacrylic resin composition (C ))
- the vinylidene fluoride resin composition of the present invention (vinylidene fluoride resin (D) or vinylidene fluoride resin (D) and methacrylic resin composition (C )) Can be blended with polyglutarimide, dartaric anhydride polymer, rataton cyclized methacrylic resin, methacrylic resin, polyethylene terephthalate resin, polybutylene terephthalate resin, if necessary. It is.
- the blending method is not particularly limited, and a known method can be used.
- the thickness of the vinylidene fluoride resin film of the present invention is preferably 1 to 300 ⁇ m, more preferably 5 to 200 ⁇ m. If the thickness of the film is less than 1 ⁇ m, the processability of the film tends to decrease, and if it exceeds 300 / zm, the transparency of the resulting film tends to decrease. [0056]
- the vinylidene fluoride-based resin film of the present invention can be modified by film lamination or biaxial stretching depending on the purpose.
- the vinylidene fluoride resin film of the present invention includes a vinylidene fluoride resin (vinylidene fluoride resin (D) or vinylidene fluoride resin (D) and methacrylic resin).
- the composition can be a film that is also formed with force, but the surface layer is formed in terms of weather resistance (especially UV protection), cost, formability, and adhesion to the laminate.
- a polyvinylidene fluoride resin multilayer film comprising the above-mentioned vinylidene fluoride resin layer and a methacrylic resin composition (C) layer is preferred.
- a method for producing a polyvinylidene fluoride resin multilayer film comprising the vinylidene fluoride resin layer forming the surface layer in the present invention and a methacrylic resin composition (C) layer
- a normal lamination method can be applied.
- Specific examples of the laminating method include, for example, using (i) the above-mentioned vinylidene fluoride-based resin film and a methacrylic-based resin composition (C) film produced separately by melt extrusion or the like using an adhesive. (Ii) a method of co-extrusion of a vinylidene fluoride resin layer and a methacrylic resin composition (C) layer, etc. , Etc.
- the co-extrusion method of the above-mentioned vinylidene fluoride resin composition and the methacrylic resin composition (C) includes a vinylidene fluoride resin layer and a methacrylic resin composition. It is preferable from the viewpoints of ensuring adhesion to the product (C) layer and controlling the thermal history of the film during the production of the multilayer film.
- the thickness of the resin layer is preferably 1 to 50 ⁇ m, and the thickness of the methacrylic resin composition (C) layer is preferably 20 to 200 ⁇ m. If the thickness of the polyvinylidene fluoride resin layer is less than 1 ⁇ m, sufficient weather resistance tends not to be obtained, and if it exceeds 50 m, the cost tends to be disadvantageous.
- the thickness of the methacrylic resin composition (C) layer is less than 20 m, there is a tendency for the film to easily enter when the film is removed, and when the thickness exceeds 200 ⁇ m, the secondary caking property tends to be difficult. There is.
- the polyvinylidene fluoride resin multilayer film of the present invention also includes polyvinylidene fluoride.
- the average spherulite diameter is less than 1.0 m, preferably less than 0.6 m, and more preferably the detection limit is less than 0 .: m.
- the average spherulite diameter of polyvinylidene fluoride is 1.0 ⁇ m or more, the transparency of the resulting polyvinylidene fluoride resin multilayer film tends to be unsatisfactory.
- the haze value is 1% or less, preferably 0.9% or less, and more preferably 0.8% or less. If the haze value of the polyvinylidene fluoride resin multilayer film exceeds 1%, the transparency of the resulting vinylidene fluoride resin multilayer film tends to be unsatisfactory.
- the vinylidene fluoride resin film or the vinylidene fluoride resin multilayer film obtained from the vinylidene fluoride resin composition of the present invention may be prepared by a known method, if necessary.
- the gloss of the surface can be reduced. For example, it can be carried out by a method of kneading an inorganic filler or crosslinkable polymer particles in the methacrylic resin composition (C).
- the gloss of the film surface can be reduced by embossing the resulting film.
- the vinylidene fluoride-based resin film or multilayer film of the present invention can be used by being laminated on a metal, plastic or the like.
- the film can be laminated by laminating, wet laminating by applying an adhesive to a metal plate such as a steel plate, and then drying and bonding the film on the metal plate, dry laminating, extrusion (extrusion) ) Laminate and hot melt laminate.
- the film As a method of laminating a film on a plastic part, the film is placed in a mold, and insert molding or laminate injection press molding in which a resin is filled by injection molding, or after the film is preformed, Examples include in-mold molding that is placed in a mold and filled with resin by injection molding.
- the film laminate obtained from the methacrylic resin composition of the present invention is used for coating substitutes such as automotive interior materials and automotive exterior materials, and building material parts such as window frames, bathroom equipment, wallpaper, and flooring materials. It can be used for materials, household goods, housing for furniture and electrical equipment, housing for office automation equipment such as facsimiles, and parts for electrical or electronic equipment. Molded products include illumination lenses, automobile headlights, optical lenses, optical fins, optical disks, and liquid crystal guides. It can be used for light plates, liquid crystal films, medical supplies that require sterilization, microwave cooking containers, housings for home appliances, toys or recreation items.
- the prepared film was prepared by freezing ultrathin section method, and observed with a transmission electron microscope (JEM-1200EX, manufactured by JEOL Ltd.) at a speed of 80 kV and 10,000 times magnification.
- the detection limit for measuring the crystal diameter of poly (vinylidene fluoride) is 0.1 l ⁇ m>.
- the crystal diameter was measured with respect to 10 spherulites in an electron microscope observation photograph using a caliper, and the average value was defined as the average spherulite diameter.
- Film formation was performed continuously for 3 hours, and the operating conditions were observed and evaluated according to the following criteria.
- the film has a uniform thickness and can be formed without being cut.
- PVDF-1 SOLEF1010 (SOLVAY, PVDF homopolymer)
- PVDF-2 SOLEF1008 (manufactured by SOLVAY, PVDF homopolymer)
- PVDF-3 SOLEF11010 (manufactured by SOLVAY, PVDF copolymer)
- A1MA Aryl methacrylate RUVA: 2- (2'—Hydroxy-1 5'-methacryloyloxychetylphenyl) 2— H—benzotriazole (RUVA-93, manufactured by Otsuka Chemical Co., Ltd.)
- the internal temperature was changed to 60 ° C, and the monomer mixture (B) ⁇ Table 90 (1) in Table 1 ⁇ BA90% And 100 parts of a monomer mixture composed of 10% MMA and 30 parts of a monomer mixture composed of 1 part of A1MA and 0.2 part of CHP, and 0.6 part of RUVA> were continuously added at a rate of 10 parts Z time, After completion of the addition, the polymerization was further continued for 0.5 hour to obtain acrylic ester-based crosslinked elastic particles (B). The polymerization conversion was 99.5%.
- melt kneading was carried out using a single-screw extruder with a 40 mm ⁇ vent (Tabata Machinery Co., Ltd., HV-40-28) at a cylinder temperature of 240 ° C., and pelletized.
- Ester-based MMA (%) 10 10 10 10 10 90 10 Cross-linked elastic body AIMA (part) 1 3 1 1 1 1 1 1 Particle (B) CHP (part) 0.2 0.2 0.2 0.5 0.2 0.2 0.2
- Polymerization is carried out in the same manner as in Production Example 1 except that the monomer composition of the monomer mixture (B) or monomer mixture (A) is changed as shown in Table 1.
- the resin powder is solidified, washed with water and dried. (2) to (7) were obtained and further melt-kneaded and pelletized.
- the latex was aggregated during the polymerization, so that the resin powder (4) could not be obtained, and the pellets could not be formed into a film and the physical properties of the film could not be evaluated.
- PVDF-1 ⁇ 98 parts and rosin powder prepared in production example (2) (2) Except for changing to 2 parts, blended with a Henschel mixer as in production example 10, and 40mm ⁇ single-screw extrusion with vent Using a machine (Tabata Machinery Co., Ltd., HV-40-28), the cylinder temperature was set to 240 ° C, melt kneading, and pelletizing.
- the methacrylic resin composition obtained in Production Example (1) was used as the base resin, and the resin composition shown in Table 2 was used as the surface layer resin, and an extruder with two types of two-layer T-die (feed block method) ( Using a 60mm extruder (2 units), it was molded at a die temperature of 240 ° C, and sandwiched between metal rolls controlled to the temperature conditions shown in Table 2, with a thickness of 60 m (base resin layer 53 m and surface resin layer 7 ⁇ m) film was obtained.
- FIGS. 1 and 2 show photographs taken with a transmission electron microscope of Example 1 and Comparative Example 1 (10,000 magnifications).
- Example 1 the average crystal radius R of polyvinylidene fluoride was measured by a laser small angle scattering method. However, in Example 1, the scattering intensity was weak and was not detected.
- Extruder with 2-layer T-die (feed block method) (60mm extruder) using methacrylic resin composition shown in Table 3 as a base resin and PVDF-1 as surface resin 2) to form a film with a thickness of 60 m (base resin layer 53 m and surface resin layer 7 m) by forming at a die temperature of 240 ° C and sandwiching between rolls with the temperature conditions shown in Table 3. Obtained.
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20050770467 EP1798253B8 (en) | 2004-08-11 | 2005-08-10 | Method for producing a vinylidene fluoride-based resin multilayered film |
| US11/659,633 US7452602B2 (en) | 2004-08-11 | 2005-08-10 | Vinylidene fluoride-based resin film |
| JP2006531696A JP4958552B2 (ja) | 2004-08-11 | 2005-08-10 | フッ化ビニリデン系樹脂フィルム |
| US12/287,992 US8303875B2 (en) | 2004-08-11 | 2008-10-15 | Method for producing vinylidene fluoride resin transparent film |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004234790 | 2004-08-11 | ||
| JP2004-234790 | 2004-08-11 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/659,633 A-371-Of-International US7452602B2 (en) | 2004-08-11 | 2005-08-10 | Vinylidene fluoride-based resin film |
| US12/287,992 Continuation US8303875B2 (en) | 2004-08-11 | 2008-10-15 | Method for producing vinylidene fluoride resin transparent film |
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| Publication Number | Publication Date |
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| WO2006016618A1 true WO2006016618A1 (ja) | 2006-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2005/014684 Ceased WO2006016618A1 (ja) | 2004-08-11 | 2005-08-10 | フッ化ビニリデン系樹脂フィルム |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US7452602B2 (ja) |
| EP (1) | EP1798253B8 (ja) |
| JP (1) | JP4958552B2 (ja) |
| WO (1) | WO2006016618A1 (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2006016618A1 (ja) | 2008-05-01 |
| US20070276107A1 (en) | 2007-11-29 |
| EP1798253B1 (en) | 2014-05-14 |
| JP4958552B2 (ja) | 2012-06-20 |
| EP1798253B8 (en) | 2014-06-18 |
| US8303875B2 (en) | 2012-11-06 |
| US7452602B2 (en) | 2008-11-18 |
| EP1798253A1 (en) | 2007-06-20 |
| EP1798253A4 (en) | 2007-09-05 |
| US20090072433A1 (en) | 2009-03-19 |
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