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WO2009001894A1 - Aqueous polytetrafluoroethylene dispersion solution, and method for production thereof - Google Patents

Aqueous polytetrafluoroethylene dispersion solution, and method for production thereof Download PDF

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Publication number
WO2009001894A1
WO2009001894A1 PCT/JP2008/061637 JP2008061637W WO2009001894A1 WO 2009001894 A1 WO2009001894 A1 WO 2009001894A1 JP 2008061637 W JP2008061637 W JP 2008061637W WO 2009001894 A1 WO2009001894 A1 WO 2009001894A1
Authority
WO
WIPO (PCT)
Prior art keywords
dispersion solution
aqueous
ptfe
melt
production
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.)
Ceased
Application number
PCT/JP2008/061637
Other languages
French (fr)
Japanese (ja)
Inventor
Nobuhiko Tsuda
Yasuhiko Sawada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
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 JP2009520633A priority Critical patent/JP5257360B2/en
Publication of WO2009001894A1 publication Critical patent/WO2009001894A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/095—Carboxylic acids containing halogens
    • 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
    • C08F14/26—Tetrafluoroethene
    • 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
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Disclosed is an aqueous polytetrafluoroethylene [PTFE] dispersion solution which does not contain perfluorooctanoic acid ammonium [PFOA] or a salt thereof and enables to produce a fine powder suitable for paste extrusion molding. Also disclosed is a method for producing the aqueous PTFE dispersion solution. In the aqueous PTFE dispersion solution, a non-melt-processable PTFE particle is dispersed in an aqueous medium in the presence of a perfluorocarboxylic acid having the number of fluorine-bound carbon atoms of 5 to 6 and the total number of carbon atoms and oxygen atoms constituting the main chain of 9 to 12 or a salt of the perfluorocarboxylic acid. The non-melt-processable PTFE particle has an average particle diameter of 150 to 350 nm and a standard specific gravity [SSG] of 2.14 to 2.20.
PCT/JP2008/061637 2007-06-28 2008-06-26 Aqueous polytetrafluoroethylene dispersion solution, and method for production thereof Ceased WO2009001894A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009520633A JP5257360B2 (en) 2007-06-28 2008-06-26 Polytetrafluoroethylene aqueous dispersion and process for producing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007170600 2007-06-28
JP2007-170600 2007-06-28

Publications (1)

Publication Number Publication Date
WO2009001894A1 true WO2009001894A1 (en) 2008-12-31

Family

ID=40185707

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061637 Ceased WO2009001894A1 (en) 2007-06-28 2008-06-26 Aqueous polytetrafluoroethylene dispersion solution, and method for production thereof

Country Status (2)

Country Link
JP (1) JP5257360B2 (en)
WO (1) WO2009001894A1 (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113950A1 (en) 2009-03-30 2010-10-07 ダイキン工業株式会社 Polytetrafluoroethylene and method for producing same
JP2011520020A (en) * 2008-05-09 2011-07-14 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Reduction of fluoroethercarboxylic acid or its salt used in the production of fluoropolymer resin
WO2011158717A1 (en) * 2010-06-17 2011-12-22 ダイキン工業株式会社 Filter medium equipped with porous film, process for producing same, filter pack, and filter unit
WO2013157647A1 (en) 2012-04-20 2013-10-24 ダイキン工業株式会社 Composition mainly composed of ptfe, mixed powder, molding material, filtering medium for filter, air filter unit, and porous membrane manufacturing method
WO2015060364A1 (en) 2013-10-23 2015-04-30 ダイキン工業株式会社 Embossed filter medium for air filter, filter pack, air filter unit, and production method for embossed filter medium for air filter
WO2015080289A1 (en) 2013-11-29 2015-06-04 ダイキン工業株式会社 Modified polytetrafluoroethylene fine powder and uniaxially oriented porous body
WO2015080291A1 (en) 2013-11-29 2015-06-04 ダイキン工業株式会社 Biaxially-oriented porous film
WO2015080292A1 (en) 2013-11-29 2015-06-04 旭化成イーマテリアルズ株式会社 Polymer electrolyte film
WO2015080290A1 (en) 2013-11-29 2015-06-04 ダイキン工業株式会社 Porous body, polymer electrolyte membrane, filter material for filter, and filter unit
CN104812781A (en) * 2012-11-30 2015-07-29 大金工业株式会社 Production method for polytetrafluoroethylene aqueous dispersion
WO2018131573A1 (en) 2017-01-12 2018-07-19 ダイキン工業株式会社 Air filter medium
JP2019218539A (en) * 2018-06-15 2019-12-26 富士ゼロックス株式会社 Dispersant-attached polytetrafluoroethylene particle, composition, laminar material, electrophotographic photoreceptor, process cartridge, and image formation device
US10644339B2 (en) 2013-11-29 2020-05-05 Asahi Kasei Kabushiki Kaisha Polymer electrolyte membrane
US11048181B2 (en) * 2019-02-08 2021-06-29 Fujifilm Business Innovation Corp. Electrophotographic photoreceptor, process cartridge, and image-forming apparatus
CN114106368A (en) * 2016-08-04 2022-03-01 大金工业株式会社 Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene and powder
CN114945604A (en) * 2020-01-15 2022-08-26 大金工业株式会社 Process for producing low-molecular-weight polytetrafluoroethylene, composition, and low-molecular-weight polytetrafluoroethylene
JP2022159204A (en) * 2021-03-31 2022-10-17 ダイキン工業株式会社 Method for producing fluororesin composition, fluororesin composition, and molded body
WO2022255453A1 (en) 2021-06-04 2022-12-08 ダイキン工業株式会社 Air filter medium, pleated filter medium, air filter unit, mask filtering medium, and method of recycling air filter medium
WO2024075791A1 (en) 2022-10-07 2024-04-11 ダイキン工業株式会社 Dielectric and method of manufacturing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11066543B2 (en) 2018-06-15 2021-07-20 Fujifilm Business Innovation Corp. Dispersant attached polytetrafluoroethylene particle, composition, layered material, electrophotographic photoreceptor, process cartridge, and image forming apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271341A (en) * 1961-08-07 1966-09-06 Du Pont Aqueous colloidal dispersions of polymer
JP2003119204A (en) * 2001-10-05 2003-04-23 Daikin Ind Ltd Method for producing fluoropolymer latex
JP2005325327A (en) * 2003-07-03 2005-11-24 Daikin Ind Ltd Fluoropolymer aggregate and method for producing the same
US20070015864A1 (en) * 2005-07-15 2007-01-18 3M Innovative Properties Company Method of making fluoropolymer dispersion
WO2007046345A1 (en) * 2005-10-17 2007-04-26 Asahi Glass Company, Limited Aqueous polytetrafluoroethylene emulsion, and polytetrafluoroethylene fine powder and porous material produced from the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4821323B2 (en) * 2003-10-31 2011-11-24 ダイキン工業株式会社 Method for producing fluoropolymer aqueous dispersion and fluoropolymer aqueous dispersion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271341A (en) * 1961-08-07 1966-09-06 Du Pont Aqueous colloidal dispersions of polymer
JP2003119204A (en) * 2001-10-05 2003-04-23 Daikin Ind Ltd Method for producing fluoropolymer latex
JP2005325327A (en) * 2003-07-03 2005-11-24 Daikin Ind Ltd Fluoropolymer aggregate and method for producing the same
US20070015864A1 (en) * 2005-07-15 2007-01-18 3M Innovative Properties Company Method of making fluoropolymer dispersion
WO2007046345A1 (en) * 2005-10-17 2007-04-26 Asahi Glass Company, Limited Aqueous polytetrafluoroethylene emulsion, and polytetrafluoroethylene fine powder and porous material produced from the same

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011520020A (en) * 2008-05-09 2011-07-14 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Reduction of fluoroethercarboxylic acid or its salt used in the production of fluoropolymer resin
US11827724B2 (en) 2009-03-30 2023-11-28 Daikin Industries, Ltd. Polytetrafluoroethylene and method for producing same
WO2010113950A1 (en) 2009-03-30 2010-10-07 ダイキン工業株式会社 Polytetrafluoroethylene and method for producing same
WO2011158717A1 (en) * 2010-06-17 2011-12-22 ダイキン工業株式会社 Filter medium equipped with porous film, process for producing same, filter pack, and filter unit
WO2013157647A1 (en) 2012-04-20 2013-10-24 ダイキン工業株式会社 Composition mainly composed of ptfe, mixed powder, molding material, filtering medium for filter, air filter unit, and porous membrane manufacturing method
EP3118256A1 (en) 2012-04-20 2017-01-18 Daikin Industries, Limited Composition having ptfe as main component, mixed powder and material for molding
CN104812781A (en) * 2012-11-30 2015-07-29 大金工业株式会社 Production method for polytetrafluoroethylene aqueous dispersion
WO2015060364A1 (en) 2013-10-23 2015-04-30 ダイキン工業株式会社 Embossed filter medium for air filter, filter pack, air filter unit, and production method for embossed filter medium for air filter
WO2015080289A1 (en) 2013-11-29 2015-06-04 ダイキン工業株式会社 Modified polytetrafluoroethylene fine powder and uniaxially oriented porous body
JP2015127412A (en) * 2013-11-29 2015-07-09 ダイキン工業株式会社 Biaxially-oriented porous film
WO2015080290A1 (en) 2013-11-29 2015-06-04 ダイキン工業株式会社 Porous body, polymer electrolyte membrane, filter material for filter, and filter unit
JP2016164273A (en) * 2013-11-29 2016-09-08 ダイキン工業株式会社 Modified polytetrafluoroethylene fine powder and uniaxially stretched porous body
WO2015080292A1 (en) 2013-11-29 2015-06-04 旭化成イーマテリアルズ株式会社 Polymer electrolyte film
WO2015080291A1 (en) 2013-11-29 2015-06-04 ダイキン工業株式会社 Biaxially-oriented porous film
US10644339B2 (en) 2013-11-29 2020-05-05 Asahi Kasei Kabushiki Kaisha Polymer electrolyte membrane
US10688448B2 (en) 2013-11-29 2020-06-23 Daikin Industries, Ltd. Porous body, polymer electrolyte membrane, filter material for filter, and filter unit
US10944121B2 (en) 2013-11-29 2021-03-09 Asahi Kasei Kabushiki Kaisha Polymer electrolyte film
EP4596613A1 (en) 2013-11-29 2025-08-06 Daikin Industries, Ltd. Porous body, polymer electrolyte membrane, filter material for filter, and filter unit
US11084895B2 (en) 2013-11-29 2021-08-10 Daikin Industries, Ltd. Modified polytetrafluoroethylene fine powder and uniaxially stretched porous body
CN114106368A (en) * 2016-08-04 2022-03-01 大金工业株式会社 Method for producing low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene and powder
WO2018131573A1 (en) 2017-01-12 2018-07-19 ダイキン工業株式会社 Air filter medium
JP2019218539A (en) * 2018-06-15 2019-12-26 富士ゼロックス株式会社 Dispersant-attached polytetrafluoroethylene particle, composition, laminar material, electrophotographic photoreceptor, process cartridge, and image formation device
JP7392299B2 (en) 2018-06-15 2023-12-06 富士フイルムビジネスイノベーション株式会社 Dispersant-adhered polytetrafluoroethylene particles, compositions, layered products, electrophotographic photoreceptors, process cartridges, and image forming devices
US11048181B2 (en) * 2019-02-08 2021-06-29 Fujifilm Business Innovation Corp. Electrophotographic photoreceptor, process cartridge, and image-forming apparatus
CN114945604A (en) * 2020-01-15 2022-08-26 大金工业株式会社 Process for producing low-molecular-weight polytetrafluoroethylene, composition, and low-molecular-weight polytetrafluoroethylene
JP2022159204A (en) * 2021-03-31 2022-10-17 ダイキン工業株式会社 Method for producing fluororesin composition, fluororesin composition, and molded body
WO2022255453A1 (en) 2021-06-04 2022-12-08 ダイキン工業株式会社 Air filter medium, pleated filter medium, air filter unit, mask filtering medium, and method of recycling air filter medium
WO2024075791A1 (en) 2022-10-07 2024-04-11 ダイキン工業株式会社 Dielectric and method of manufacturing same

Also Published As

Publication number Publication date
JPWO2009001894A1 (en) 2010-08-26
JP5257360B2 (en) 2013-08-07

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