WO2006082778A1 - 親水性フッ化ビニリデン樹脂組成物およびその製造方法 - Google Patents
親水性フッ化ビニリデン樹脂組成物およびその製造方法 Download PDFInfo
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- WO2006082778A1 WO2006082778A1 PCT/JP2006/301437 JP2006301437W WO2006082778A1 WO 2006082778 A1 WO2006082778 A1 WO 2006082778A1 JP 2006301437 W JP2006301437 W JP 2006301437W WO 2006082778 A1 WO2006082778 A1 WO 2006082778A1
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- Prior art keywords
- vinylidene fluoride
- hydrophilic
- polymer
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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
- 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
- C08F14/18—Monomers containing fluorine
- C08F14/22—Vinylidene fluoride
-
- 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
- C08F259/00—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00
- C08F259/08—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing fluorine
-
- 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
-
- 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
- C08L51/003—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 macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L31/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
- C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C08L31/04—Homopolymers or copolymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
-
- 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
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S525/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S525/934—Powdered coating composition
Definitions
- Hydrophilic vinylidene fluoride resin composition and method for producing the same
- the present invention relates to a vinylidene fluoride resin composition excellent in sustained hydrophilicity and processability, and a method for producing the same.
- Vinylidene fluoride resin is a material that is used in various applications because it is excellent in chemical resistance, weather resistance, abrasion resistance, electrical properties, and the like, and has good heat resistance. However, because it is a hydrophobic resin with a small surface energy, it has problems such as poor adhesion to other members and easy adhesion of dirt depending on the application. Means to make it easier have been proposed.
- Patent Document 1 discloses a means by chemical treatment, but it takes time and cost and may impair the properties of vinylidene fluoride itself.
- Patent Document 2 below discloses means for copolymerizing with hydrophilic monomers, but the types and amounts of hydrophilic monomers that can be copolymerized are limited.
- Patent Document 3 discloses a mixture with another hydrophilic resin, but it is difficult to obtain a uniform mixture. From the viewpoint of improving the homogeneity of the mixture, after the suspension polymerization of vinylidene fluoride is completed, another monomer is added to the polymerization can, and the added monomer is added by the polymerization initiator remaining in the vinylidene fluoride polymer particles.
- a polymerized composition is disclosed (Patent Document 4 below), but from the viewpoint of controlling the crystallinity of the vinylidene resin, no consideration is given to imparting hydrophilicity or sustaining it.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-230280
- Patent Document 2 Japanese Patent No. 3121943
- Patent Document 3 Japanese Patent No. 3200095
- Patent Document 4 Japanese Patent Publication No. 52-38586
- the main object of the present invention is to provide a vinylidene fluoride resin composition that is more hydrophilic and has better processability than before, and a method for producing the same. There is to be.
- Patent Document 4 As a result of studies conducted by the present inventors to achieve the above-mentioned object, the production technique described in Patent Document 4 that gives a homogeneous vinylidene fluoride resin composition is the same as that in vinylidene fluoride polymer particles. It was confirmed that a hydrophilic vinylidene fluoride resin composition having good processability (heat miscibility) can be obtained by polymerization of a hydrophilic monomer impregnated in the resin. However, the hydrophilicity of the vinylidene fluoride resin composition thus obtained is not sustainable.
- Such a relatively low molecular weight polymer is excellent in compatibility with the vinylidene fluoride polymer and is effective for adjusting the crystallinity thereof, but the hydrophilic polymer targeted by the present invention. It is not suitable for providing continuous hydrophilicity by blending.
- the present inventors can increase the molecular weight of the hydrophilic polymer by adjusting the amount of the remaining initiator present in the vinylidene fluoride polymer particles and then impregnating and polymerizing the hydrophilic monomer. The present inventors have found that a vinylidene fluoride resin composition having a persistent hydrophilic property can be obtained.
- the hydrophilic vinylidene fluoride resin composition of the present invention is based on such knowledge, and is contained in porous vinylidene fluoride polymer particles and pores of the porous vinylidene fluoride polymer particles. And a hydrophilic polymer having a weight average molecular weight of 200,000 or more.
- the method for producing the hydrophilic vinylidene fluoride resin composition of the present invention corresponds to the above-described efficient method for producing the hydrophilic vinylidene fluoride resin composition of the present invention.
- After heat-treating the porous vinylidene fluoride polymer particles obtained by suspension polymerization at 65 to 100 ° C. hydrophilic groups and unsaturated double bonds are formed in the pores of the porous vinylidene fluoride polymer particles. It is characterized in that it is impregnated and polymerized.
- BEST MODE FOR CARRYING OUT THE INVENTION [0007] The preferred embodiments of the present invention will be described in more detail below. In the following description, “parts” and “%” used to indicate the composition or quantity ratio are based on weight unless otherwise specified.
- the hydrophilic vinylidene fluoride resin composition of the present invention contains an additional initiator in a system in which commercially available dried vinylidene fluoride polymer particles are used as a starting material and dispersed again in an aqueous medium. It can also be formed by adding a hydrophilic monomer and polymerizing it. This is because the weight average molecular weight (Mw) of the hydrophilic polymer formed by polymerization of the monomer impregnated in the vinylidene fluoride polymer particles (hereinafter simply referred to as “impregnation polymerization”) is, for example, 500,000 or more.
- Mw weight average molecular weight
- the production method of the present invention including a mode in which a monomer is added and polymerization is performed using a polymerization initiator remaining in the vinylidene fluoride polymer particles (hereinafter simply referred to as “intraparticle polymerization”). That's right.
- vinylidene fluoride polymer a homopolymer of vinylidene fluoride, that is, a copolymer with other copolymerizable monomers in addition to polyvinylidene fluoride (PVDF) is used.
- Monomers that can be copolymerized with vinylidene fluoride include fluorine-containing monomers such as tetrafluoroethylene, hexafluoropropylene, trifluorinated ethylene, ethylene trifluoride chloride, vinyl fluoride, ethylene, monomethyl maleate, vinyl
- fluorine-free monomers such as rylglycidyl ether can be used.
- the vinylidene fluoride polymer contains 70 mol% or more of vinylidene fluoride as a structural unit. And are preferred. For applications requiring mechanical strength and chemical resistance, a homopolymer composed of 100 mol% vinylidene fluoride, and for applications requiring flexibility, a copolymer containing 70 mol% or more of vinylidene fluoride, It is preferable to use properly according to the application.
- suspension polymerization for the formation of such vinylidene fluoride polymer particles generally 100 parts of vinylidene fluoride alone or a mixture of monomers copolymerizable therewith and 0.1 part of polymer are polymerized.
- the initiator is polymerized by suspending it in 100 to 400 parts, preferably 200 to 300 parts of an aqueous medium containing a suspension of about 0.01 to 0.1 part of methylcellulose or the like as required.
- the polymerization initiator those having a 10-hour half-life temperature T of 30 ° C to 90 ° C are preferably used.
- Inherent viscosity corresponding to the average molecular weight ie, logarithm of a solution of 4 g of resin dissolved in 1 liter of N, N-dimethylformamide at 30 ° C
- a slurry containing vinylidene fluoride polymer particles having a viscosity of about 0.5 to 5. Odl / g and an average particle size (cumulative 50% by weight particle size) of about 70 to 300 ⁇ m is obtained.
- a hydrophilic monomer is added to the vinylidene fluoride polymer slurry obtained above to carry out intraparticle polymerization.
- the weight average molecular weight Mw of the hydrophilic polymer produced here (example) is such that the soluble extract from the composition with tetrahydrofuran or hexafluoroisopropanol can be confirmed as Mw in terms of polymethylmetatalylate in terms of Mw) of 200,000 or more, preferably 300,000 or more.
- the vinylidene fluoride polymer slurry is heat-treated at 65 to: 100 ° C. for 0.5 to 4 hours, preferably at 70 to 90 ° C.
- the residual amount in the vinylidene fluoride polymer particle of the above amount of the polymerization initiator added to polymerize the vinylidene fluoride polymer having an inherent viscosity as described above within an appropriate time is used as it is. This is because, when used for internal polymerization, the molecular weight of the formed hydrophilic polymer becomes too small to provide sustained hydrophilicity. Heat treatment excessively to reduce the residual polymerization initiator, and then change the desired initiator Can also be added. The polymerization initiator added later may be the same as or different from the initial one.
- the hydrophilic monomer includes an unsaturated double bond and at least one of an ester group, a hydroxy group, a carboxy group, an epoxy group, an ether group, a sulfonic acid group, an amino group, an amide group, and an acid anhydride group.
- Specific examples of the ester group-containing monomer also include carbonates such as vinylene carbonate, which can be exemplified by carboxylic acid esters such as butyl acetate, butyl propionate, and methyl (meth) acrylate.
- Specific examples of the hydroxy group-containing monomer include hydroxyethyl (meth) acrylate.
- carboxy group-containing monomer examples include monoethyl maleate, monomethyl citraconic acid, monoethyl citraconic acid, and (meth) acrylic acid.
- epoxy group-containing monomer examples include glycidyl (meth) acrylate and allyl glycidyl ether.
- ether group-containing monomer examples include (poly) ethylene glycol (meth) acrylate and perfluorovinyl ether.
- sulfonic acid group-containing monomer examples include vinyl sulfonic acid, acrylic sulfonic acid, and styrene sulfonic acid.
- amino group-containing monomer examples include arylamine and (meth) arylamide.
- amide group-containing monomers include N- (3-dimethylaminopropyl) acrylamide, N- (3-dimethylaminopropyl) acrylamide, and N-isopropylacrylamide.
- N, N-dimethylacrylamide, N-iso also included are those in which the hydrogen atom of the amide group is substituted with an alkyl group or a vinyl group, such as propylacrylamide, N, N-jetylacrylamide, N, N-dimethylaminoethyl acrylate, and N-butylphthalimide.
- acid anhydride group-containing monomer include maleic anhydride and citraconic anhydride.
- hydrophilic monomers such as, for example, arylidylidyl ether.
- hydrophilic monomers can be used alone or copolymerized. Considering the balance between hydrophilicity and polymerizability, the ability to copolymerize up to 20% of hydrophobic monomers with the above functional groups.
- a composition obtained by carrying out intraparticle polymerization using a carboxylic acid alkylene ester such as butyl acetate as a hydrophilic monomer may be used as it is, According to this, a hydrophilic polymer having a hydroxy group as a hydrophilic group can be obtained. Furthermore, a hydrophilic polymer obtained using a monomer having a glycidinole group may be treated with water or sulfuric acid to generate a hydroxyl group from the glycidyl group.
- the hydrophilic polymer suitable for formation by intraparticle polymerization has a contact angle of pure water of 70 degrees or less, particularly 60 degrees or less, measured by the method described later for a single molded body. It is.
- the lower limit of the contact angle is not particularly limited, but it is usually 20 degrees or more, particularly 30 degrees or more.
- the above-mentioned hydrophilic monomer is added in an amount of 5 to 200 parts, preferably 10 to 150 parts, per 100 parts of vinylidene fluoride polymer particles for intraparticle polymerization.
- the hydrophilic monomer is less than 5 parts, an effective hydrophilic composition cannot be obtained, and if it exceeds 200 parts, particles are aggregated during polymerization and a uniform composition cannot be obtained.
- a polyfunctional crosslinking agent having a plurality of unsaturated double bonds may be used in combination.
- the cross-linking agent preferably has a hydrophilic group as described above. Examples thereof include divinyl adipate, vinyl methacrylate, bicrotonate, (poly) ethylene glycol dimetatalylate, 1, 3— Polyfunctional metatalates such as butylene glycol dimethacrylate, 1,6-hexanediol dimethacrylate, neopentylglycol dimethacrylate, (poly) propylene glycol dimethacrylate, 2-hydroxy 1,3-dimethacryloxypropane, Examples thereof include polyfunctional acrylates such as (poly) ethylene glycol diathalate, 1,6-hexanediol diathalate, neopentyl glycol diathalate, (poly) propylene glycol diathalate and allyl acrylate.
- the intraparticle polymerization temperature is suitably 20 to 80 ° C, preferably 30 to 70 ° C.
- the average particle size is generally about 70 to 350 ⁇ m by recovering the particles from the polymer slurry, and the process formability by hot melt molding or pressing is good.
- a press sheet is formed, it is 70 degrees or less, preferably 60 degrees or less.
- a hydrophilic and water-resistant vinylidene fluoride resin composition having a water contact angle below (and usually 20 degrees or more, especially 30 degrees or more) is obtained.
- adhesive members, antifouling building materials, water treatment materials In particular, it can be suitably used for forming a molded article exhibiting a contact area with water that is relatively large compared to its mass, taking advantage of its water resistance.
- the good persistence of the hydrophilicity of the composition is, for example, that the value of the contact angle is almost constant (ie, before and after the press sheet is immersed in hot water for a predetermined time (eg, 100 hours in 85 ° C. water)). 70 degrees or less, preferably 60 degrees or less), and the water resistance of the hydrophilic polymer is determined by the weight of the hydrophilic polymer obtained by extracting the composition press sheet with water at 85 ° C from 50 to 100 hours. Each decrease can be confirmed by 10% or less.
- the hydrophilicity of the resin composition of the present invention or a molded product thereof is treated with a base solution
- the hydrophilicity can be further improved.
- the hydrophilic polymer of the resin composition of the present invention has a force having at least one hydrophilic group such as hydroxy group —OH, carboxy group —COOH, epoxy group —C (0) C—, etc.
- it changes its ionic form to 10—or 10—M + or ionic form to COO— or to COO—M + (where M + is a counter-thick thione), making it more hydrophilic.
- M + is a counter-thick thione
- a base solution having a pH of 12 or more is preferred.
- an aqueous solution of an inorganic alkali (earth) metal hydroxide such as sodium hydroxide, potassium hydroxide or calcium hydroxide, an alcohol solution (alcolate), aqueous ammonia, or methyl.
- Luamine is obtained as organic amines such as dimethylamine, etc., and is used by heating as necessary.
- PVDF was prepared by scouring 20 mg of the polymer sample in the particle and heating the sample at a rate of 10 ° CZ in a nitrogen atmosphere using a thermogravimetric analyzer (“TGAZSTTA851” manufactured by METTLER TOLEDO).
- TGAZSTTA851 thermogravimetric analyzer
- a 10-liter autoclave is charged with 7693 g of ion-exchanged water, 0.9 02 g of methyl cellulose, 25.75 g of dinore manorepropinoreno 1-year-old xydicarbonate, and 5 g of Fuyubijuriden 300 and suspended at 26 ° C for 26 hours. Polymerization was conducted, and the remaining monomer was removed by purging to complete the polymerization, followed by dehydration to obtain a polymer powder slurry (1). The water content of the polymer powder slurry after dehydration was about 30% by weight.
- the quantitative value of the intraparticle polymer (hydrophilic polymer) in the polymer powder (2) was 24.4% by weight, and the weight average molecular weight of the extracted intraparticle polymer was 913,000. In addition, the water contact angle of the polymer powder (2) was 50 degrees, indicating good durability.
- the polymer powder (2) obtained above was subjected to MFR measurement (27) using a melt flow value (MFR) measuring device ("Meltflixer Typ556-0040" manufactured by Thermo Haake (Germany)).
- MFR melt flow value measuring device
- Example 2 571 g of the polymer powder slurry (1) obtained in the same manner as in Example (1) above was placed in an autoclave with an internal volume of 3 liters together with 853 g of ion-exchanged water, and 70 minutes at 70 ° C for 75 minutes. After heat treatment at ° C for 1.5 hours, the temperature was lowered to 35 ° C, 60 g of butyl acetate monomer was charged, and polymerization was carried out for 7 hours. After completion of the polymerization, dehydration, washing with water and drying at 80 ° C. for 20 hours, a polymer powder (3) corresponding to the vinylidene fluoride resin composition of the present invention was obtained.
- polymer powder slurry (1) 571 g of polymer powder slurry (1) was charged in a 3 liter autoclave together with 853 g of ion-exchanged water, heated at 70 ° C for 2 hours, then lowered to 35 ° C, and 2-hydroxyethyl methacrylate. A rate of 90 g was charged and polymerization was carried out for 7 hours. After completion of the polymerization, dehydration, washing with water and drying at 80 ° C. for 20 hours to obtain a polymer powder (6).
- polymer powder slurry (1) 571 g of polymer powder slurry (1) was charged into a 3 liter autoclave with 853 g of ion-exchanged water and 90 g of 2-ion ⁇ ⁇ -chichechinole methacrylate, and 7B temple at 35 ° C. Polymerization was performed. After completion of the polymerization, dehydration and water washing were performed, followed by further drying at 80 ° C for 20 hours to obtain a polymer powder (7).
- Example 5 Charge 571 g of polymer powder slurry (1) with 853 g of ion-exchanged water into a 3 liter autoclave, heat it at 75 ° C for 2 hours, lower it to 50 ° C, 40 g of methacrylic acid, methacrylolic acid Mechinore 20g, Ryo Reno Leme Tatari rate 0. 15 g, aqueous hydrochloric acid 10g of 5wt 0/0 as a pH adjusting Qi 1 J, and charged sodium nitrite 0. 02G as aqueous phase polymerization inhibitor, subjected to polymerization of 2 0 hours It was. After completion of the polymerization, dehydration, washing with water and drying at 80 ° C.
- the water contact angle of the polymer powder (8) was 65 degrees.
- the water contact angle measured was 30 degrees. Furthermore, the water contact angle was maintained at 30 degrees even after being immersed in pure water at 85 ° C for 100 hours.
- the vinylidene fluoride resin composition excellent in both sustained hydrophilicity and processability, and its efficiency.
- An exemplary manufacturing method is provided.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US11/883,317 US8236865B2 (en) | 2005-02-02 | 2006-01-30 | Hydrophilic vinylidene fluoride resin composition and method for production thereof |
JP2007501555A JP5030771B2 (ja) | 2005-02-02 | 2006-01-30 | 親水性フッ化ビニリデン樹脂組成物およびその製造方法 |
Applications Claiming Priority (2)
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JP2005026804 | 2005-02-02 | ||
JP2005-026804 | 2005-02-02 |
Publications (1)
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WO2006082778A1 true WO2006082778A1 (ja) | 2006-08-10 |
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ID=36777162
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PCT/JP2006/301437 WO2006082778A1 (ja) | 2005-02-02 | 2006-01-30 | 親水性フッ化ビニリデン樹脂組成物およびその製造方法 |
Country Status (4)
Country | Link |
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US (1) | US8236865B2 (ja) |
JP (1) | JP5030771B2 (ja) |
CN (1) | CN100575366C (ja) |
WO (1) | WO2006082778A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120213915A1 (en) * | 2009-10-30 | 2012-08-23 | Kureha Corporation | Process for Producing Heat-Treated Vinylidene Fluoride Polymer Powder and Process for Producing Vinylidene Fluoride Polymer Solution |
JP7083690B2 (ja) | 2018-04-26 | 2022-06-13 | 株式会社クレハ | 粒子 |
US11826975B2 (en) * | 2016-08-16 | 2023-11-28 | Daikin Industries, Ltd. | Molded article and manufacturing method for molded article |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2970536B1 (en) | 2013-03-15 | 2017-05-24 | Arkema, Inc. | Fluoropolymers |
CN106076286B (zh) * | 2016-06-14 | 2018-07-10 | 吉林市润成膜科技有限公司 | 一种络合剂接枝聚偏氟乙烯吸附膜的制备方法 |
CN110527430A (zh) * | 2019-08-26 | 2019-12-03 | 佛山科学技术学院 | 一种改性聚偏二氟乙烯氟碳涂料及其制备方法 |
CN114920867B (zh) * | 2022-06-08 | 2024-02-02 | 万华化学(四川)有限公司 | 一种粒径分布可控的偏氟乙烯共聚物及制备方法 |
CN115594783B (zh) * | 2022-10-12 | 2023-10-17 | 万华化学集团股份有限公司 | 一种制备锂电粘结剂的方法 |
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US5349003A (en) | 1988-09-20 | 1994-09-20 | Japan Synthetic Rubber Co., Ltd. | Aqueous fluorine-containing polymer dispersion and aqueous dispersion containing fluorine-containing polymer and water-soluble resin and/or water dispersible resin |
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US6103645A (en) * | 1996-04-08 | 2000-08-15 | Shell Oil Company | Foam filter material and process to prepare foam filter material |
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WO2004029109A1 (ja) * | 2002-09-25 | 2004-04-08 | Kureha Chemical Industry Company, Limited | ポリ弗化ビニリデン系共重合体及びその溶液 |
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2006
- 2006-01-30 CN CN200680003796.XA patent/CN100575366C/zh not_active Expired - Fee Related
- 2006-01-30 WO PCT/JP2006/301437 patent/WO2006082778A1/ja not_active Application Discontinuation
- 2006-01-30 US US11/883,317 patent/US8236865B2/en not_active Expired - Fee Related
- 2006-01-30 JP JP2007501555A patent/JP5030771B2/ja not_active Expired - Fee Related
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JPS4838229B1 (ja) * | 1970-08-20 | 1973-11-16 | ||
JPS50116582A (ja) * | 1974-02-28 | 1975-09-11 | ||
JPH037784A (ja) * | 1988-09-20 | 1991-01-14 | Japan Synthetic Rubber Co Ltd | フッ素系重合体水性分散液およびフッ素系重合体含有水性分散液 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20120213915A1 (en) * | 2009-10-30 | 2012-08-23 | Kureha Corporation | Process for Producing Heat-Treated Vinylidene Fluoride Polymer Powder and Process for Producing Vinylidene Fluoride Polymer Solution |
US11826975B2 (en) * | 2016-08-16 | 2023-11-28 | Daikin Industries, Ltd. | Molded article and manufacturing method for molded article |
JP7083690B2 (ja) | 2018-04-26 | 2022-06-13 | 株式会社クレハ | 粒子 |
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US20080249201A1 (en) | 2008-10-09 |
CN101111525A (zh) | 2008-01-23 |
US8236865B2 (en) | 2012-08-07 |
JPWO2006082778A1 (ja) | 2008-06-26 |
JP5030771B2 (ja) | 2012-09-19 |
CN100575366C (zh) | 2009-12-30 |
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