WO2007074901A1 - Dispersion aqueuse de fluoropolymere - Google Patents

Dispersion aqueuse de fluoropolymere Download PDF

Info

Publication number
WO2007074901A1
WO2007074901A1 PCT/JP2006/326246 JP2006326246W WO2007074901A1 WO 2007074901 A1 WO2007074901 A1 WO 2007074901A1 JP 2006326246 W JP2006326246 W JP 2006326246W WO 2007074901 A1 WO2007074901 A1 WO 2007074901A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluorine
fluoropolymer
aqueous
surfactant
dispersion
Prior art date
Application number
PCT/JP2006/326246
Other languages
English (en)
Japanese (ja)
Inventor
Nobuhiko Tsuda
Chie Sawauchi
Hiromichi Momose
Original Assignee
Daikin Industries, Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Priority to JP2007521728A priority Critical patent/JP4985399B2/ja
Publication of WO2007074901A1 publication Critical patent/WO2007074901A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/18—Homopolymers or copolymers of tetrafluoroethene

Definitions

  • the present invention relates to an aqueous fluoropolymer dispersion.
  • Patent Document 1 uses an ethoxylated aliphatic alcohol type nonionic surfactant as a dispersant in a dispersion having an average particle size of 0.25 i um polytetrafluoroethylene [PTFE] particles. By doing so, it is described that the generation of sludge near room temperature can be suppressed.
  • PTFE polytetrafluoroethylene
  • Patent Document 2 (1) an aqueous dispersion of PTFE is concentrated by an ultrafiltration method, a fluorine-containing surfactant is added in an amount of 0 to 0.1% by weight, and a stabilizing emulsifier is added.
  • Patent Document 3 and Patent Document 4 disclose aqueous fluoropolymer dispersions with reduced PFOA. These references point out the problem of increasing the viscosity of the resulting fluoropolymer aqueous dispersion when PFOA is reduced. To overcome this problem, non-fluorine-based surfactants are added to fluoropolymers 1 to 1. A method of adding in the range of 12% has been proposed.
  • Patent Document 5 describes an aqueous PTFE dispersion in which the amount of a non-ionic surfactant is 1.5 to 4% by weight of PTFE particles. However, there is no specific description regarding the content of the fluorine-containing surfactant in this PTFE aqueous dispersion.
  • Patent Document 6 describes a method of obtaining a fluoropolymer aqueous dispersion by adding a nonionic emulsifier and removing the fluorine-containing emulsifier by contacting with an anion exchanger. However, this method has a problem that the fluoropolymer in the obtained aqueous fluoropolymer dispersion is not highly concentrated and is not practical.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 47-6539
  • Patent Document 2 JP-A-55-120630
  • Patent Document 3 US Patent Application Publication No. 2004Z171736
  • Patent Document 4 US Patent Application Publication No. 2004Z186219
  • Patent Document 5 JP 2000-160118 A
  • Patent Document 6 Special Table 2002-532583 ([Claims], [0025]) Disclosure of Invention
  • the object of the present invention is to suppress the increase in viscosity due to an increase in the liquid temperature despite the low fluorine-containing surfactant concentration and the fluorine-free surfactant concentration, and is excellent in storage stability. It is to provide an aqueous fluoropolymer dispersion.
  • the present invention relates to a fluoropolymer aqueous dispersion in which particles comprising a fluoropolymer are dispersed in an aqueous medium in the presence of a fluorine-free surfactant, and the particles comprising the fluoropolymer are composed of the fluoropolymer aqueous solution.
  • the fluoropolymer is an aqueous fluoropolymer dispersion characterized in that the amount corresponds to 1% by mass or more and 5% by mass or less of the solid content of the fluoropolymer, and the fluoropolymer is modified polytetrafluoroethylene.
  • the aqueous fluoropolymer dispersion of the present invention is one in which particles having a fluoropolymer force are dispersed in an aqueous medium in the presence of a fluorine-free nonionic surfactant.
  • the fluoropolymer is a modified polytetra Fluoroethylene [modified PTFE].
  • the modified PTFE means a copolymer of TFE and a small amount of monomer other than TFE, which is non-melt processable.
  • the trace monomer examples include fluoroolefins such as HFP and CTFE, fluoro having an alkyl group having 1 to 5 carbon atoms, particularly 1 to 3 carbon atoms (alkyl butyl etherol); Rosioxol; perfluoroalkylethylene; ⁇ -hydroperfluoroolefin.
  • fluoroolefins such as HFP and CTFE
  • fluoro having an alkyl group having 1 to 5 carbon atoms, particularly 1 to 3 carbon atoms alkyl butyl etherol
  • Rosioxol perfluoroalkylethylene
  • ⁇ -hydroperfluoroolefin examples include fluoroolefins such as HFP and CTFE, fluoro having an alkyl group having 1 to 5 carbon atoms, particularly 1 to 3 carbon atoms (alkyl butyl etherol); Rosioxol; perfluoroalkylethylene; ⁇ -hydroper
  • the very small proportion monomer content ⁇ the total monomer units of the very small proportion monomer units derived from or, usually 0.001 to 1 Monore 0/0, preferably ⁇ or 0.005 to 0. 5 Monore 0/0, the more favorable Mashiku in the range of 0.01 to 0.1 Monore 0/0.
  • the content (mol%) of a trace monomer unit in all monomer units means the monomer from which the above “all monomer units” is derived, that is, a fluoropolymer. This means the mole fraction (mol%) of the trace monomer from which the trace monomer unit is derived, based on the total amount of the monomer that constitutes.
  • the average particle size of the fluoropolymer particles is 50 to 400 nm, preferably 100 to 350 nm.
  • the average particle size is determined by measuring the transmittance of the 550 nm projection light with respect to the unit length of the aqueous dispersion with the fluoropolymer particle concentration adjusted to 0.22 mass%, and the directional direction diameter in the transmission electron micrograph.
  • the permeability power is determined based on a calibration curve with the average particle diameter determined in the above.
  • the aqueous fluoropolymer dispersion of the present invention has a fluoropolymer particle strength of 35 to 70% by mass of the aqueous fluoropolymer dispersion.
  • the preferred lower limit of the content of the fluoropolymer particles in the aqueous fluoropolymer dispersion is 40% by mass, a more preferred lower limit is 50% by mass, and a preferred upper limit is 65% by mass.
  • the content of the fluoropolymer particles is based on the heating residue (Z) obtained by taking about 1 lg (X) of a sample in an aluminum cup with a diameter of 5 cm, drying at 100 ° C for 1 hour, and further drying at 300 ° C for 1 hour.
  • Formula: P ZZXX 100 (%)
  • the aqueous medium in the present invention is not particularly limited as long as it is a liquid containing water, and in addition to water, for example, a fluorine-free organic solvent such as alcohol, ether, ketone, paraffin wax, and Z or fluorine-containing organic It may also contain a solvent.
  • the aqueous fluoropolymer dispersion of the present invention may have a fluorine-free surfactant as a surfactant within the range described below.
  • the aqueous fluoropolymer dispersion may contain only one kind of the above non-fluorine-containing surfactant, or may contain two or more kinds! /.
  • the fluorine-free surfactant may be either a non-one surfactant or a char-on surfactant as long as it has a compound power not containing fluorine. It is preferably a non-ionic surfactant.
  • the non-ionic surfactant is not particularly limited as long as it is a non-ionic compound containing no fluorine (non-fluorine-containing non-ionic surfactant), and a known one is used. Can be used.
  • nonionic surfactant examples include ether type nonionic surfactants such as polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ether, polyoxyethylene alkylene alkyl ether, and the like; ethylene oxide Z propylene Polyoxyethylene derivatives such as oxide block copolymers; sorbitan fatty acid esters
  • Ester-type surfactants such as polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, glycerin fatty acid ester, polyoxyethylene fatty acid ester; polyoxyethylene alkylamine, alkyl alkanolamide, etc. Amine noion surfactants; and the like.
  • the hydrophobic group may be any of an alkylphenol group, a linear alkyl group, and a branched alkyl group, but the alkylphenol group is present in the structure. However, it is preferable that the compound does not have a benzene ring.
  • nonionic surfactants polyoxyethylene alkyl ether type nonionic surfactants are preferred.
  • the polyoxyethylene alkyl ether type non-ionic surfactant has 1 carbon atom. Those having a polyoxyethylene alkyl ether structure having an alkyl group of 0 to 20 are preferred, and those having a polyoxyethylene alkyl ether structure having an alkyl group having 10 to 15 carbon atoms are more preferred.
  • the alkyl group in the polyoxyethylene alkyl ether structure preferably has a branched structure.
  • polyoxyethylene alkyl ether type non-ionic surfactant examples include Genapol X080 (product name, manufactured by Clariant), Taditol 9—S-15 (product name, manufactured by Clariant), Neugen TDS-80 ( Product name, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.).
  • non-ionic surfactant examples include those having an ethylene oxide propylene oxide [EO-PO] block copolymer structure, which is known as a pull nick type surfactant.
  • the on-surfactants, EO content is preferably 30 to 90 wt%, more preferably 35 to 85 wt%, more preferably 40-60 weight 0 / It is 0 , and the average molecular weight force multiplier ⁇ is 1000 to 10000, more preferably ⁇ is 2000 to 9 000, and more preferably 4000 to 8000.
  • Examples of the pull-mouth nick type surfactant include Pluronic PE6800, Pluronic PE6400 (product name, manufactured by BASF), Genapol PF40, Genapol PF80 (product name, manufactured by Clariant), and the like.
  • fluorine-free surfactants in the present invention for example, alkylsulfonic acid and its salt, alkylsulfuric acid ester and its salt, alkylsulfosuccinic acid ester and its salt, oxyalkyl Sulfonated acids and their salts.
  • a non-fluorine-containing surfactant a combination of a nonionic surfactant and a cation surfactant improves the storage stability and improves the liquid temperature in the resulting aqueous dispersion. Can suppress the increase in viscosity.
  • the fluorine-free surfactant is an amount corresponding to 1% by mass or more and 5% by mass or less of the fluoropolymer.
  • the above-mentioned aqueous fluoropolymer dispersion has a fluorine-free surfactant amount within the above-mentioned range, and is stored without significantly impairing crack resistance and mechanical stability, although it is lower than conventional aqueous fluoropolymer dispersions. Good stability and increased liquid temperature Accordingly, the increase in viscosity can be suppressed.
  • the fluorine-free surfactant is preferably in an amount corresponding to 1 to 3.5% by mass of the particles having a fluoropolymer force.
  • the more preferable lower limit of the content of the fluorine-free surfactant in the aqueous fluoropolymer dispersion is an amount corresponding to 2% by mass of the particles made of the fluoropolymer.
  • the aqueous fluoropolymer dispersion of the present invention may contain a fluorine-containing surfactant.
  • the fluorine-containing surfactant is not particularly limited as long as it has the ability to contain a fluorine-containing compound and exhibits an emulsifying action.
  • the fluorine-containing compound to be constituted those having an average molecular weight of 1000 or less are preferably removed. In terms of ease, those having an average molecular weight of 500 or less are more preferred, and those having 5 to 12 carbon atoms are preferred.
  • fluorine-containing surfactants include those containing fluorine-containing compounds such as fluorine-containing carboxylic acid compounds and fluorine-containing sulfonic acid compounds (hereinafter referred to as "fluorine-containing surfactant activities"). Fluorine-containing carboxylic acid compounds and cocoons or their salts are more preferred.
  • perfluorooctanoic acid and ⁇ or a salt thereof are collectively abbreviated as “PFOA”.
  • perfluorooctylsulfonic acid and Z or a salt thereof may be abbreviated as “PFOS”.
  • the fluorosurfactant is preferably perfluorocarboxylic acid and Z or a salt thereof.
  • examples of the counter ion forming the salt include alkali metal ions or NH +, and examples of the alkali metal ion include Na +, Ka +, etc.
  • NH + is preferable.
  • PFOS is a salt
  • examples thereof include an ammonium salt.
  • the amount of the fluorine-containing surfactant is not more than the amount corresponding to 50 ppm of the fluoropolymer.
  • the concentration of the fluorine-containing surfactant is preferably not more than an amount corresponding to 20 ppm, more preferably not more than an amount corresponding to 10 ppm.
  • the content of the fluorine-containing surfactant is determined by performing high-performance liquid chromatography [HPLC] under the conditions described below after adding Soxhlet extraction with the same amount of methanol as the aqueous fluoropolymer dispersion. It is measured by.
  • the aqueous fluoropolymer dispersion of the present invention is obtained by (1) polymerizing a fluoropolymer and (2) adjusting the respective contents of the fluoropolymer, the fluorine-containing surfactant and the fluorine-free surfactant. Can do.
  • the step (1) can be performed by a known method such as suspension polymerization or emulsion polymerization.
  • fluorine-containing monomer non-fluorine-containing monomer, and additives such as a polymerization initiator and a chain transfer agent used in each of the above polymerizations, known ones can be used as appropriate.
  • surfactants can be used.
  • each of the above polymerizations is preferably carried out in the presence of the above-mentioned fluorine-containing surfactant in an amount of from 0.0001 to LO mass% of the aqueous medium.
  • the amount of the fluorine-containing surfactant is preferably 0.001% by mass or more of the aqueous medium, more preferably 1% by mass or more.
  • step (2) depending on the amount of the fluorine-containing surfactant used in the step (1), the content of the fluoropolymer in the fluoropolymer dispersion obtained from the step (1), etc.
  • the means, conditions, etc. can be selected as appropriate.
  • the contents of the fluoropolymer and the fluorine-containing surfactant are the phase separation method described in the pamphlet of International Publication No. 2004Z050719, the ion exchange resin method described in JP 2002-532583 A, It can be adjusted by performing a conventionally known operation such as a membrane treatment method described in 55-120630, an electrophoresis method described in UK Patent No. 642025, an evaporation method described in JP 2003-531232, etc. Aqueous, but can be obtained
  • the amount of non-fluorine containing surfactant used in each operation must be limited so that the amount of non-fluorine containing surfactant in the dispersion does not exceed the scope of this application.
  • each operation may be performed once or may be performed twice or more.
  • the same operation may be repeated, You can combine different operations.
  • the content of the non-fluorine-containing surfactant is, for example, after the above-described operation, which limits the amount of the non-fluorine-containing surfactant used in each of the above-mentioned operations. It can be prepared by adding a fluorine-free surfactant.
  • the aqueous fluoropolymer dispersion of the present invention has a mechanical stability with a good dispersion stability despite the extremely low content of fluorine-containing surfactants and fluorine-free surfactants and high fluoropolymer concentration. Excellent in stability and storage stability.
  • the above fluoropolymer mono-aqueous dispersion has an extremely low content of each of the above-mentioned surfactants, the crack resistance and mechanical stability are not greatly impaired, it has excellent storage stability, and the liquid temperature. The increase in viscosity associated with the increase can be suppressed.
  • the above fluoropolymer aqueous dispersion contains the above-mentioned surfactant as a fluorine-free surfactant, it is particularly excellent in storage stability and can easily suppress an increase in viscosity accompanying an increase in liquid temperature.
  • the aqueous fluoropolymer dispersion of the present invention can be processed into, for example, a fluoropolymer powder, a molded article and the like.
  • the fluoropolymer powder has a very low content of the fluorine-containing surfactant, and thus is useful as an excellent molded material.
  • the fluoropolymer powder can be prepared by a conventional method according to the desired use.
  • aqueous fluoropolymer dispersion of the present invention can be coated on a coating, cast film, impregnated body or the like as it is or with various additives.
  • the above fluoropolymer aqueous dispersion is, for example, an oven lining, cooking utensils such as ice trays, electric wires, pipes, ship bottoms, high-frequency printed circuit boards, conveyor belts, coating materials on iron bottom plates; fiber base materials, woven fabrics / nonwoven fabrics, etc. Can be processed into an impregnated material, etc.
  • the fiber substrate is not particularly limited. For example, glass fiber, carbon fiber, And aramid fibers (Kepler (registered trademark) fibers, etc.).
  • Processing of the aqueous fluoropolymer dispersion can be performed by a conventionally known method.
  • the aqueous fluoropolymer dispersion of the present invention has the above-described configuration, the content of the fluorine-containing surfactant and the fluorine-free surfactant is extremely low, and the fluoropolymer mono has a high concentration. Furthermore, it is excellent in dispersion stability and storage stability, and can suppress an increase in viscosity accompanying an increase in liquid temperature.
  • Average particle size determined by measuring the transmittance of 550 nm projection light with respect to the unit length of an aqueous fluoropolymer dispersion adjusted to 0.22% by weight of the solid content of rosin and the directional direction diameter in a transmission electron micrograph Based on the calibration curve with the diameter, it was determined from the transmittance.
  • the obtained aqueous dispersion was added with an equal amount of methanol and subjected to Soxhlet extraction, and then subjected to high performance liquid chromatography [HPLC] under the following conditions.
  • HPLC high performance liquid chromatography
  • a calibration curve obtained by HPLC measurement with the above-mentioned eluate and conditions was used for a known concentration of the fluorine-containing surfactant.
  • fluoropolymer aqueous dispersion 50g was subjected to high-speed shearing with a homogenizer CM-1 00 (manufactured by Azwan Co., Ltd.) at 15000rpm for 5 minutes, and then filtered through a 400 mesh stainless steel wire mesh to collect the aggregates. Dry and weigh at 100 ° C.
  • the percentage of the aggregate relative to the fluoropolymer in the aqueous fluoropolymer dispersion was determined as mechanical stability. The smaller this value, the more stable the fluoropolymer aqueous dispersion is against shearing.
  • Degreased aluminum plate (size: 10cm x 15cm) is immersed in 100ml of fluoropolymer aqueous dispersion, dried at room temperature on a 45 ° slope for 5 minutes, further dried at 380 ° C for 10 minutes, and then cooled to room temperature Check for cracks with a 10X magnifier. Of the immersed aluminum plates that did not generate cracks, the maximum film thickness was measured with a film thickness meter to obtain CCT.
  • aqueous fluoropolymer dispersion 500 ml of an aqueous fluoropolymer dispersion was placed in a plastic container and allowed to stand in a temperature-controlled room at 25 ° C or 40 ° C for 2 months. After standing, the mixture was gently stirred and then filtered through a stainless steel 400 mesh, and the agglomerate remaining on the mesh was dried. Those with poor storage stability generate a large amount of agglomerates.
  • the temperature of the hot water bath was raised while stirring, the internal temperature reached 70 ° C, the stirring was stopped, the internal temperature was maintained at 70 ° C for 6 hours, and then the separated supernatant phase was removed, The PTFE aqueous dispersion phase was separated.
  • the resulting PTFE aqueous dispersion (concentrated aqueous dispersion) has a PTFE concentration of 70.5%, a fluorine-free surfactant content equivalent to 3.0% of PTFE, and a PFOA content of 48 ppm of PTFE. The amount was equivalent to
  • Neugen TDS-80 and ion-exchanged water are added to this aqueous dispersion to adjust the PTFE content to 60% and the fluorine-free surfactant to an amount equivalent to 6.0% of PTFE. It was.
  • Synthesis Example 1 The same as Synthesis Example 1 except that PTFE was changed to modified PTFE (perfluoropropyl butyl ether [PP VE] modified, modified amount 0.1 mol%, average particle size 240 nm) in Synthesis Example 1.
  • modified PTFE perfluoropropyl butyl ether [PP VE] modified, modified amount 0.1 mol%, average particle size 240 nm
  • PP VE perfluoropropyl butyl ether
  • PTFE dispersion (i) (PTFE content 30%, average particle diameter 220nm, PFOA content: PTFE equivalent to 2000ppm, fluorine-free surfactant (product name: Genapol X080, Clariant) content: An amount equivalent to 5% of PTFE) 2000g, an anion exchange resin (product name: Amberlite IRA402J, manufactured by Rohm 'And' Haas) 50ml in a column (diameter 2cm) filled with a temperature of 50 ° C, space Through the conditions of speed [SV] 2, the PTFE concentration is 30%, the fluorine-free surfactant content is equivalent to 4.9% of PTFE, and the PFOA content is equivalent to lOppm of PTFE. 1980 g of PTFE dispersion (ii) was obtained.
  • the PTFE aqueous dispersion separated from the PTFE aqueous dispersion phase has a PTFE concentration of 69.8%, a fluorine-free surfactant content, an amount equivalent to 2.5% of SpTFE, and a PFOA content of 2 ppm of PTFE. Is equivalent to o
  • Ion exchange water and Genapol X080 were added to this to adjust the amount of PTFE 60% and fluorine-free surfactant to 6% of PTFE.
  • ion exchange treatment and concentration were performed in the same manner as in Synthesis Example 4 to obtain a modified PTFE concentration of 70.5. %, A fluorine-free surfactant content corresponding to 2.5% of the modified PTFE, and a PFOA content corresponding to 2 ppm of the modified PTFE were obtained.
  • Ion exchange water and the above-mentioned non-fluorine-containing surfactant were added thereto, and the modified PTFE 60% and the content of non-fluorine-containing surfactant were adjusted to an amount corresponding to 6% of the modified PTFE.
  • Viscosity, mechanical stability, crack limit thickness [CCT] and storage stability were measured for the aqueous dispersions of each synthesis example.
  • Table 1 shows the measurement results.
  • the aqueous fluoropolymer dispersion of the present invention has the above-described configuration, the content of the fluorine-containing surfactant and the fluorine-free surfactant is extremely low, and the fluoropolymer mono has a high concentration. Furthermore, it is excellent in dispersion stability and storage stability, and can suppress an increase in viscosity accompanying an increase in liquid temperature.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L’invention concerne une dispersion aqueuse de fluoropolymère dont la viscosité n’augmente pas lors d’une élévation de la température du liquide, et qui par conséquent fait preuve d’une excellente stabilité de conservation malgré sa faible teneur en tensioactif fluoré et en tensioactif non fluoré. L’invention concerne une dispersion aqueuse de fluoropolymère comprenant un milieu aqueux contenant un tensioactif non fluoré, dans lequel sont dispersées des particules de fluoropolymère, ladite dispersion étant caractérisée en ce que : la quantité de particules de fluoropolymère représente de 35 à 70 % en masse de la dispersion ; la teneur en tensioactif fluoré dans la dispersion est inférieure ou égale à 50 ppm, en se basant sur la quantité de fluoropolymère en termes de matières solides ; la teneur en tensioactif non fluoré représente de 1 à 5 % en masse, en se basant sur la quantité de fluoropolymère en termes de matières solides ; et le fluoropolymère est un polytétrafluoroéthylène modifié.
PCT/JP2006/326246 2005-12-28 2006-12-28 Dispersion aqueuse de fluoropolymere WO2007074901A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007521728A JP4985399B2 (ja) 2005-12-28 2006-12-28 フルオロポリマー水性分散液

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005380423 2005-12-28
JP2005-380423 2005-12-28

Publications (1)

Publication Number Publication Date
WO2007074901A1 true WO2007074901A1 (fr) 2007-07-05

Family

ID=38218122

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/326246 WO2007074901A1 (fr) 2005-12-28 2006-12-28 Dispersion aqueuse de fluoropolymere

Country Status (2)

Country Link
JP (1) JP4985399B2 (fr)
WO (1) WO2007074901A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008032613A1 (fr) * 2006-09-11 2008-03-20 Asahi Glass Company, Limited Procédé servant à produire un copolymère du tétrafluoroéthylène pouvant être moulé en phase fondue
WO2019235439A1 (fr) * 2018-06-06 2019-12-12 Ａｇｃ株式会社 Dispersion liquide, procédé de production de feuille métallique comprenant une résine et procédé de production de carte de circuit imprimé
KR102708267B1 (ko) 2018-06-06 2024-09-20 에이지씨 가부시키가이샤 분산액, 수지가 부착된 금속박의 제조 방법, 및 프린트 기판의 제조 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002532583A (ja) * 1998-12-11 2002-10-02 ダイネオン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト フルオロポリマーの水性分散液
WO2004050719A1 (fr) * 2002-11-29 2004-06-17 Daikin Industries, Ltd. Procede de purification d'emulsions aqueuses de fluoropolymere, emulsions purifiees et produits finis fluores
JP2005501956A (ja) * 2001-09-05 2005-01-20 スリーエム イノベイティブ プロパティズ カンパニー 低分子量フッ素化界面活性剤を全くまたは殆ど含まないフルオロポリマー分散
JP2006523758A (ja) * 2003-02-28 2006-10-19 スリーエム イノベイティブ プロパティズ カンパニー 低分子量フッ素化界面活性剤を含まないか、または少量含むフルオロポリマー分散系

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6956078B2 (en) * 2002-01-04 2005-10-18 E.I. Du Pont De Nemours And Company Concentrated fluoropolymer dispersions
JP4206714B2 (ja) * 2002-09-10 2009-01-14 ダイキン工業株式会社 含フッ素樹脂水性分散体、含フッ素樹脂水性組成物、被覆物及び膜
US20070155891A1 (en) * 2003-12-09 2007-07-05 Daikin Industries, Ltd. Water base dispersion of fluorinated polymer and process for producing the same
WO2006035726A1 (fr) * 2004-09-27 2006-04-06 Daikin Industries, Ltd. Formulation de dispersion aqueuse de polytetrafluoroethylene, film de resine polytetrafluoroethylene, et produits impregnes de resine polytetrafluoroethylene
JP2006104391A (ja) * 2004-10-07 2006-04-20 Daikin Ind Ltd フルオロポリマー水性分散液の製造方法
US20060183842A1 (en) * 2005-02-10 2006-08-17 Johnson David W Fluoropolymer dispersions with reduced fluorosurfactant content and high shear stability
JP2006316242A (ja) * 2005-04-13 2006-11-24 Daikin Ind Ltd フルオロポリマー水性分散液の製造方法
US7612139B2 (en) * 2005-05-20 2009-11-03 E.I. Du Pont De Nemours And Company Core/shell fluoropolymer dispersions with low fluorosurfactant content
US20100168301A1 (en) * 2005-06-24 2010-07-01 Daikin Industries, Ltd. Aqueous fluorine-containing polymer dispersion and method for production thereof
JP2007197721A (ja) * 2005-12-28 2007-08-09 Daikin Ind Ltd フルオロポリマー水性分散液
JP2009057392A (ja) * 2005-12-28 2009-03-19 Daikin Ind Ltd フルオロポリマー水性分散液
JP2007177188A (ja) * 2005-12-28 2007-07-12 Daikin Ind Ltd フルオロポリマー水性分散液及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002532583A (ja) * 1998-12-11 2002-10-02 ダイネオン・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディトゲゼルシャフト フルオロポリマーの水性分散液
JP2005501956A (ja) * 2001-09-05 2005-01-20 スリーエム イノベイティブ プロパティズ カンパニー 低分子量フッ素化界面活性剤を全くまたは殆ど含まないフルオロポリマー分散
WO2004050719A1 (fr) * 2002-11-29 2004-06-17 Daikin Industries, Ltd. Procede de purification d'emulsions aqueuses de fluoropolymere, emulsions purifiees et produits finis fluores
JP2006523758A (ja) * 2003-02-28 2006-10-19 スリーエム イノベイティブ プロパティズ カンパニー 低分子量フッ素化界面活性剤を含まないか、または少量含むフルオロポリマー分散系

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008032613A1 (fr) * 2006-09-11 2008-03-20 Asahi Glass Company, Limited Procédé servant à produire un copolymère du tétrafluoroéthylène pouvant être moulé en phase fondue
US8470942B2 (en) 2006-09-11 2013-06-25 Asahi Glass Company, Limited Method for producing melt-moldable tetrafluoroethylene copolymer
WO2019235439A1 (fr) * 2018-06-06 2019-12-12 Ａｇｃ株式会社 Dispersion liquide, procédé de production de feuille métallique comprenant une résine et procédé de production de carte de circuit imprimé
CN112236473A (zh) * 2018-06-06 2021-01-15 Ａｇｃ株式会社 分散液、带树脂的金属箔的制造方法、及印刷基板的制造方法
KR102708267B1 (ko) 2018-06-06 2024-09-20 에이지씨 가부시키가이샤 분산액, 수지가 부착된 금속박의 제조 방법, 및 프린트 기판의 제조 방법

Also Published As

Publication number Publication date
JPWO2007074901A1 (ja) 2009-06-04
JP4985399B2 (ja) 2012-07-25

Similar Documents

Publication Publication Date Title
JP4829122B2 (ja) 少量のフッ素化界面活性剤を有するポリテトラフルオロエチレンの水性分散液
JP5261377B2 (ja) アニオン性高分子電解質分散剤で安定化された濃縮フルオロポリマー分散液
US9080035B2 (en) Aqueous fluoropolymer dispersion
JP4798132B2 (ja) 含フッ素ポリマー水性分散液及びその製造方法
JP6615105B2 (ja) 脂肪族非イオン性界面活性剤で安定化させたテトラフルオロエチレンポリマー分散液
JP5435089B2 (ja) 含フッ素ポリマー水性分散液
JP5256736B2 (ja) フルオロポリマー水性分散液
JP6746608B2 (ja) ポリテトラフルオロエチレン水性分散液
JP6979031B2 (ja) ポリテトラフルオロエチレン水性分散液
JP2010070741A (ja) 含フッ素ポリマー水性分散液
JP5417847B2 (ja) 含フッ素ポリマー水性分散液の製造方法及び含フッ素ポリマー水性分散液
JP5195425B2 (ja) フッ素樹脂水性分散液及びその製造方法
WO2007074902A1 (fr) Dispersion aqueuse de fluoropolymere
WO2007074901A1 (fr) Dispersion aqueuse de fluoropolymere
JP2007177188A (ja) フルオロポリマー水性分散液及びその製造方法
JP2007197721A (ja) フルオロポリマー水性分散液
JP5251013B2 (ja) フッ素樹脂水性分散液の製造方法
JPWO2006077737A1 (ja) 含フッ素ポリマー水性分散液製造方法
JP2008214400A (ja) フッ素樹脂水性分散液の製造方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2007521728

Country of ref document: JP

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06843624

Country of ref document: EP

Kind code of ref document: A1