JPS5529519A - Preparation of fluorocopolymer - Google Patents

Preparation of fluorocopolymer

Info

Publication number
JPS5529519A
JPS5529519A JP10145678A JP10145678A JPS5529519A JP S5529519 A JPS5529519 A JP S5529519A JP 10145678 A JP10145678 A JP 10145678A JP 10145678 A JP10145678 A JP 10145678A JP S5529519 A JPS5529519 A JP S5529519A
Authority
JP
Japan
Prior art keywords
perfluorovinyl ether
followed
fluorocopolymer
formula
carrying
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.)
Granted
Application number
JP10145678A
Other languages
Japanese (ja)
Other versions
JPS6133848B2 (en
Inventor
Gen Kojima
Masayuki Tamura
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.)
AGC Inc
Original Assignee
Asahi Glass Co 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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP10145678A priority Critical patent/JPS5529519A/en
Publication of JPS5529519A publication Critical patent/JPS5529519A/en
Publication of JPS6133848B2 publication Critical patent/JPS6133848B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To obtain a fluorocopolymer with excellent physical properties in high efficiency, by carrying out polymerization in an aqueous medium with a specific pH in the presence of a cpecific perfluorovinyl ether.
CONSTITUTION: To a mixture of a fluoromonomer such as tetrafluoroethylene, fluorovinylidene and a comonomer such as propylene, hexafluoropropylene, tetrafluoroehylene is added 0.1W10 mole%, based on the total monomer mixture, of a perfluorovinyl ether of formula (M is NH4 or alkali metal; N is 1W7), followed by carrying out polymerization in an aqueous medium of a pH of 5W10(pref. 6W9) virtually free from surfactant in the presence of 0.005W5wt% of an initiator. Said perfluorovinyl ether of the formula can be synthesized by bydrolysing an ester or acid fluoride of the corresponding fluorovinyl ether to form the corresponding acid, followed by neutralizing to obtain the salt.
COPYRIGHT: (C)1980,JPO&Japio
JP10145678A 1978-08-22 1978-08-22 Preparation of fluorocopolymer Granted JPS5529519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10145678A JPS5529519A (en) 1978-08-22 1978-08-22 Preparation of fluorocopolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10145678A JPS5529519A (en) 1978-08-22 1978-08-22 Preparation of fluorocopolymer

Publications (2)

Publication Number Publication Date
JPS5529519A true JPS5529519A (en) 1980-03-01
JPS6133848B2 JPS6133848B2 (en) 1986-08-05

Family

ID=14301189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10145678A Granted JPS5529519A (en) 1978-08-22 1978-08-22 Preparation of fluorocopolymer

Country Status (1)

Country Link
JP (1) JPS5529519A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198513A (en) * 1989-06-09 1993-03-30 The Dow Chemical Company Reactive compounds containing perfluorovinyl groups
EP0779335A4 (en) * 1994-08-31 1998-05-13 Daikin Ind Ltd Aqueous dispersion of vinylidene fluoride copolymer, aqueous dispersion of vinylidene fluoride seed polymer, and processes for producing the dispersions
WO1999050319A1 (en) * 1998-03-25 1999-10-07 Daikin Industries, Ltd. Method of reducing metal content in fluoroelastomer
JP2001316406A (en) * 2000-05-09 2001-11-13 Nippon Mektron Ltd Process for preparing fluorinated copolymer
WO2005097846A1 (en) * 2004-04-07 2005-10-20 Daikin Industries, Ltd. Fluorine-containing elastomer polymer and method for producing same
JP2006504844A (en) * 2002-10-31 2006-02-09 スリーエム イノベイティブ プロパティズ カンパニー Emulsifier-free aqueous emulsion polymerization to produce copolymers of fluorinated olefins and hydrocarbon olefins
JP2007510036A (en) * 2003-10-30 2007-04-19 スリーエム イノベイティブ プロパティズ カンパニー Aqueous emulsion polymerization of functionalized fluoromonomers
EP1535935A4 (en) * 2002-06-17 2009-04-29 Daikin Ind Ltd FLUOROPOLYMER DISPERSION AND METHOD FOR PRODUCING FLUOROPOLYMER DISPERSION
JP2010180364A (en) * 2009-02-06 2010-08-19 Daikin Ind Ltd Aqueous dispersion of low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene powder and method for producing low molecular weight polytetrafluoroethylene

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1681308B1 (en) 2003-10-22 2014-07-09 Daikin Industries, Ltd. Method of producing an aqueous tetrafluoroethylene polymer dispersion
JP2005320501A (en) * 2004-04-07 2005-11-17 Daikin Ind Ltd Method for producing fluorine-containing elastomer polymer
JP4834971B2 (en) * 2004-04-07 2011-12-14 ダイキン工業株式会社 Method for producing fluorine-containing elastomer polymer
CN117460752A (en) * 2021-06-11 2024-01-26 大金工业株式会社 Method for manufacturing aqueous fluoroelastomer dispersion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228586A (en) * 1975-08-29 1977-03-03 Asahi Glass Co Ltd Method for manufacturing an improved fluoropolymer having cation excha nge groups
JPS531692A (en) * 1976-06-29 1978-01-09 Asahi Glass Co Ltd Novel f-containing cation exchange resin
JPS534114A (en) * 1976-07-02 1978-01-14 Toyota Motor Corp Valve timing variable device for internal combustion engine
JPS5343793A (en) * 1976-10-01 1978-04-20 Asahi Glass Co Ltd Preparation of ion exchangeable group-containing fluoropolymer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228586A (en) * 1975-08-29 1977-03-03 Asahi Glass Co Ltd Method for manufacturing an improved fluoropolymer having cation excha nge groups
JPS531692A (en) * 1976-06-29 1978-01-09 Asahi Glass Co Ltd Novel f-containing cation exchange resin
JPS534114A (en) * 1976-07-02 1978-01-14 Toyota Motor Corp Valve timing variable device for internal combustion engine
JPS5343793A (en) * 1976-10-01 1978-04-20 Asahi Glass Co Ltd Preparation of ion exchangeable group-containing fluoropolymer

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198513A (en) * 1989-06-09 1993-03-30 The Dow Chemical Company Reactive compounds containing perfluorovinyl groups
EP0779335A4 (en) * 1994-08-31 1998-05-13 Daikin Ind Ltd Aqueous dispersion of vinylidene fluoride copolymer, aqueous dispersion of vinylidene fluoride seed polymer, and processes for producing the dispersions
EP1097948A4 (en) * 1998-03-25 2006-05-03 Daikin Ind Ltd METHOD FOR REDUCING METAL CONTENT IN FLUORELASTOMERS
JP2012211347A (en) * 1998-03-25 2012-11-01 Daikin Industries Ltd Method of producing fluorine-containing elastomer
US6703461B1 (en) 1998-03-25 2004-03-09 Daikin Industries, Ltd. Method of reducing metal content in fluoroelastomer
US6921797B2 (en) 1998-03-25 2005-07-26 Daikin Industries, Ltd. Method of reducing metal content in fluorine-containing elastomer
WO1999050319A1 (en) * 1998-03-25 1999-10-07 Daikin Industries, Ltd. Method of reducing metal content in fluoroelastomer
JP2008144180A (en) * 1998-03-25 2008-06-26 Daikin Ind Ltd Fluorine-containing elastomer
JP2001316406A (en) * 2000-05-09 2001-11-13 Nippon Mektron Ltd Process for preparing fluorinated copolymer
EP1535935A4 (en) * 2002-06-17 2009-04-29 Daikin Ind Ltd FLUOROPOLYMER DISPERSION AND METHOD FOR PRODUCING FLUOROPOLYMER DISPERSION
US9109053B2 (en) 2002-06-17 2015-08-18 Daikin Industries, Ltd. Fluoropolymer dispersion and process for producing fluoropolymer dispersion
EP2365008A1 (en) 2002-06-17 2011-09-14 Daikin Industries, Ltd. Fluoropolymer dispersion and process for producing fluoropolymer dispersion
JP2006504844A (en) * 2002-10-31 2006-02-09 スリーエム イノベイティブ プロパティズ カンパニー Emulsifier-free aqueous emulsion polymerization to produce copolymers of fluorinated olefins and hydrocarbon olefins
JP2007510036A (en) * 2003-10-30 2007-04-19 スリーエム イノベイティブ プロパティズ カンパニー Aqueous emulsion polymerization of functionalized fluoromonomers
JP2012140634A (en) * 2003-10-30 2012-07-26 Three M Innovative Properties Co Aqueous emulsion polymerization of functionalized fluoromonomer
WO2005097846A1 (en) * 2004-04-07 2005-10-20 Daikin Industries, Ltd. Fluorine-containing elastomer polymer and method for producing same
JP2010180364A (en) * 2009-02-06 2010-08-19 Daikin Ind Ltd Aqueous dispersion of low molecular weight polytetrafluoroethylene, low molecular weight polytetrafluoroethylene powder and method for producing low molecular weight polytetrafluoroethylene

Also Published As

Publication number Publication date
JPS6133848B2 (en) 1986-08-05

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