CN106414510B - 采用聚环氧烷在含氟单体的水相聚合中成核 - Google Patents

采用聚环氧烷在含氟单体的水相聚合中成核 Download PDF

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CN106414510B
CN106414510B CN201480064604.0A CN201480064604A CN106414510B CN 106414510 B CN106414510 B CN 106414510B CN 201480064604 A CN201480064604 A CN 201480064604A CN 106414510 B CN106414510 B CN 106414510B
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aqueous medium
surfactant
reactor
dispersion
polymerization
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CN106414510A (zh
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P.D.布罗瑟斯
S.V.甘加尔
D.D.哈斯尼斯
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EIDP Inc
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EI Du Pont de Nemours and Co
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00Compositions 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
    • C08L27/02Compositions 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
    • C08L27/12Compositions 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
    • C08L27/18Homopolymers or copolymers or tetrafluoroethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F14/00Homopolymers 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
    • C08F14/18Monomers containing fluorine
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F14/00Homopolymers 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
    • C08F14/18Monomers containing fluorine
    • C08F14/26Tetrafluoroethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/12Polymerisation in non-solvents
    • C08F2/16Aqueous medium
    • C08F2/18Suspension polymerisation

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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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
CN201480064604.0A 2013-11-26 2014-11-25 采用聚环氧烷在含氟单体的水相聚合中成核 Active CN106414510B (zh)

Applications Claiming Priority (3)

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US201361908768P 2013-11-26 2013-11-26
US61/908768 2013-11-26
PCT/US2014/067268 WO2015081055A1 (en) 2013-11-26 2014-11-25 Employing polyalkylene oxides for nucleation in aqueous polymerization of fluoromonomer

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CN106414510B true CN106414510B (zh) 2018-11-30

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EP (1) EP3074430B1 (https=)
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WO (1) WO2015081055A1 (https=)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3559052A1 (en) * 2016-12-22 2019-10-30 Solvay Specialty Polymers Italy S.p.A. Vinylidene fluoride polymer
WO2018181904A1 (ja) 2017-03-31 2018-10-04 ダイキン工業株式会社 フルオロポリマーの製造方法、重合用界面活性剤及び界面活性剤の使用
EP3786203B1 (en) * 2018-04-27 2024-10-23 Agc Inc. Method for producing modified polytetrafluoroethylene, method for producing modified polytetrafluoroethylene powder, and method for producing stretched porous body
JP7277799B2 (ja) * 2018-10-03 2023-05-19 ダイキン工業株式会社 ポリテトラフルオロエチレンの製造方法
EP3880719A4 (en) 2018-11-12 2022-08-10 Arkema, Inc. PROCESS FOR PREPARING A FLUOROPOLYMER DISPERSION
JP7564452B2 (ja) * 2019-04-26 2024-10-09 ダイキン工業株式会社 フルオロポリマー水性分散液の製造方法
CN114222654A (zh) 2019-08-26 2022-03-22 大金工业株式会社 注射成型方法
KR102805006B1 (ko) 2019-08-26 2025-05-12 다이킨 고교 가부시키가이샤 축전체 및 가스킷
EP4024576A4 (en) 2019-08-26 2023-11-22 Daikin Industries, Ltd. ELEMENT FOR BATTERIES WITH NON-AQUEOUS ELECTROLYTE SOLUTION
CN114270620A (zh) 2019-08-26 2022-04-01 大金工业株式会社 非水电解液电池用部件
KR20220035470A (ko) 2019-08-26 2022-03-22 다이킨 고교 가부시키가이샤 비수 전해액 전지용 부재
EP4053181A4 (en) * 2019-10-29 2024-03-06 Agc Inc. METHOD FOR PRODUCING AN AQUEOUS POLYTETRAFLUORETHYLENE DISPERSION
CN116234794A (zh) 2020-10-01 2023-06-06 科慕埃弗西有限公司 含氟聚合物的水性聚合反应中的低反应性烃分散剂
EP4299642A4 (en) * 2021-02-24 2025-01-22 Agc Inc. Method for producing polytetrafluoroethylene aqueous dispersion
KR20230131269A (ko) 2021-02-26 2023-09-12 다이킨 고교 가부시키가이샤 사출 성형체 및 그 제조 방법
KR20230130735A (ko) 2021-02-26 2023-09-12 다이킨 고교 가부시키가이샤 사출 성형체
KR20230131268A (ko) 2021-02-26 2023-09-12 다이킨 고교 가부시키가이샤 사출 성형체 및 그 제조 방법
KR20230129191A (ko) 2021-02-26 2023-09-06 다이킨 고교 가부시키가이샤 사출 성형체 및 그 제조 방법
JP7104362B1 (ja) 2021-02-26 2022-07-21 ダイキン工業株式会社 共重合体、成形体、射出成形体および被覆電線
KR102867567B1 (ko) 2021-02-26 2025-10-14 다이킨 고교 가부시키가이샤 관 조인트 및 관 조인트의 제조 방법
JP7174307B2 (ja) 2021-02-26 2022-11-17 ダイキン工業株式会社 射出成形体およびその製造方法
WO2023190921A1 (ja) * 2022-03-30 2023-10-05 ダイキン工業株式会社 共重合体、成形体および射出成形体
CN121532434A (zh) 2023-07-19 2026-02-13 Agc株式会社 含氟弹性体的制造方法、水性分散液、固体组合物
WO2025033329A1 (ja) 2023-08-08 2025-02-13 Agc株式会社 含フッ素重合体の製造方法、水性分散液、粒子及び組成物
JP7804869B2 (ja) 2023-08-08 2026-01-23 Agc株式会社 含フッ素重合体の製造方法、水性分散液、粒子、及び組成物
JP7800762B2 (ja) 2023-08-08 2026-01-16 Agc株式会社 含フッ素重合体の製造方法、水性分散液、粒子及び組成物
WO2025089223A1 (ja) 2023-10-23 2025-05-01 Agc株式会社 含フッ素重合体の製造方法
WO2026063534A1 (ja) * 2024-09-20 2026-03-26 ダイキン工業株式会社 含フッ素エラストマー水性分散液の製造方法および含フッ素エラストマー

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101535352A (zh) * 2006-11-09 2009-09-16 纳幕尔杜邦公司 使用包含氟聚醚酸或盐以及短链含氟表面活性剂的聚合剂进行的氟化单体的含水聚合反应
CN101547966A (zh) * 2006-12-08 2009-09-30 阿科玛股份有限公司 用于制造一种稳定的氟聚合物分散体的水性方法
CN101553528A (zh) * 2006-12-08 2009-10-07 阿科玛股份有限公司 用于制造氟聚合物的水性方法
CN103201301A (zh) * 2010-11-09 2013-07-10 纳幕尔杜邦公司 含氟单体的含水聚合反应中的成核作用
CN103201300A (zh) * 2010-11-09 2013-07-10 纳幕尔杜邦公司 使用烃表面活性剂的含氟单体的含水聚合
JP2013212438A (ja) * 2012-03-30 2013-10-17 Daikin Industries Ltd 非イオン性界面活性剤組成物、及び、フルオロポリマー水性分散液

Family Cites Families (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA878571A (en) 1971-08-17 H. Porter Verleon Dispersion polymerization of tetrafluoroethylene
US2559752A (en) 1951-03-06 1951-07-10 Du Pont Aqueous colloidal dispersions of polymers
BE563881A (https=) 1957-01-11
US3037953A (en) 1961-04-26 1962-06-05 Du Pont Concentration of aqueous colloidal dispersions of polytetrafluoroethylene
US3271341A (en) 1961-08-07 1966-09-06 Du Pont Aqueous colloidal dispersions of polymer
US3282875A (en) 1964-07-22 1966-11-01 Du Pont Fluorocarbon vinyl ether polymers
US3391099A (en) 1966-04-25 1968-07-02 Du Pont Polymerization process
DE2015279A1 (de) 1969-04-01 1970-10-08 E.I. du Pont de Nemours and'Company, Wilmington, Del. (V.St.A.) Dispersionspolymerisation von Tetrafluoräthylen
DE2037028C2 (de) 1970-07-25 1982-07-08 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung fluorhaltiger Copolymerisate
US4036802A (en) 1975-09-24 1977-07-19 E. I. Du Pont De Nemours And Company Tetrafluoroethylene copolymer fine powder resin
US4098978A (en) 1975-11-12 1978-07-04 The B. F. Goodrich Company Process for emulsion polymerization of vinylidene halides and product thereof
US4342675A (en) 1978-06-16 1982-08-03 E. I. Du Pont De Nemours And Company Process for preparing aqueous dispersion of polytetrafluoroethylene
US4358545A (en) 1980-06-11 1982-11-09 The Dow Chemical Company Sulfonic acid electrolytic cell having flourinated polymer membrane with hydration product less than 22,000
US4463144A (en) 1980-09-10 1984-07-31 Asahi Glass Company Ltd. Process for producing propylene-tetrafluoroethylene copolymer
US4380618A (en) 1981-08-21 1983-04-19 E. I. Du Pont De Nemours And Company Batch polymerization process
US4552631A (en) 1983-03-10 1985-11-12 E. I. Du Pont De Nemours And Company Reinforced membrane, electrochemical cell and electrolysis process
US4621116A (en) 1984-12-07 1986-11-04 E. I. Du Pont De Nemours And Company Process for copolymerization of tetrafluoroethylene in the presence of a dispersing agent comprising a perfluoroalkoxybenzene sulfonic acid or salt
US4940525A (en) 1987-05-08 1990-07-10 The Dow Chemical Company Low equivalent weight sulfonic fluoropolymers
JP3172983B2 (ja) 1993-09-20 2001-06-04 ダイキン工業株式会社 ビニリデンフルオライド系重合体の水性分散液およびその製法
DE4335705A1 (de) 1993-10-20 1995-04-27 Hoechst Ag Herstellung eines modifizierten Polytetrafluorethylens und seine Verwendung
IT1270703B (it) 1994-11-17 1997-05-07 Ausimont Spa Microemulsioni di fluoropoliossialchileni in miscela con idrocarburi, e loro uso in processi di (co)polimerizzazione di monomeri fluorurati
US5637748A (en) 1995-03-01 1997-06-10 E. I. Du Pont De Nemours And Company Process for synthesizing fluorinated nitrile compounds
US5703185A (en) 1995-08-17 1997-12-30 E. I. Du Pont De Nemours And Company Fluoropolymer extrusion process
US5763552A (en) 1996-07-26 1998-06-09 E. I. Du Pont De Nemours And Company Hydrogen-containing flourosurfacant and its use in polymerization
US5866711A (en) 1996-09-13 1999-02-02 E. I. Du Pont De Nemours And Company Fluorocyanate and fluorocarbamate monomers and polymers thereof
US5969067A (en) 1996-09-13 1999-10-19 E.I. Dupont De Nemours And Company Phosphorus-containing fluoromonomers and polymers thereof
US6395848B1 (en) 1999-05-20 2002-05-28 E. I. Du Pont De Nemours And Company Polymerization of fluoromonomers
US6512063B2 (en) 2000-10-04 2003-01-28 Dupont Dow Elastomers L.L.C. Process for producing fluoroelastomers
EP1392744B1 (en) 2001-05-02 2008-07-09 3M Innovative Properties Company Emulsifier free aqueous emulsion polymerization process for making fluoropolymers
JP2006504844A (ja) 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 フッ化オレフィンと炭化水素オレフィンとのコポリマーを製造するための、乳化剤非含有水性乳化重合
US6841616B2 (en) 2003-03-28 2005-01-11 Arkema Inc. Polymerization of halogen-containing monomers using siloxane surfactant
US6869997B2 (en) 2003-05-06 2005-03-22 Arkema, Inc. Polymerization of fluoromonomers using a 3-allyloxy-2-hydroxy-1-propanesulfonic acid salt as surfactant
JP2004359870A (ja) 2003-06-05 2004-12-24 Daikin Ind Ltd 界面活性剤、含フッ素重合体の製造方法及び含フッ素重合体水性分散液
US7589234B2 (en) 2003-07-02 2009-09-15 Daikin Industries, Ltd. Fluoroalkyl carboxylic acid derivative, method for producing fluorine-containing polymer, and aqueous dispersion of fluorine-containing polymer
US20050090613A1 (en) 2003-10-22 2005-04-28 Daikin Industries, Ltd. Process for preparing fluorine-containing polymer latex
ATE529451T1 (de) 2003-11-17 2011-11-15 3M Innovative Properties Co Wässrige ptfe-dispersionen mit einem niedrigen gehalt an fluorierten emulgatoren
JP4100431B2 (ja) 2003-12-25 2008-06-11 ダイキン工業株式会社 フルオロポリマーの製造方法
US7122610B2 (en) 2004-04-27 2006-10-17 Arkema Inc. Method of producing thermoplastic fluoropolymers using alkyl sulfonate surfactants
US20060281845A1 (en) 2005-06-10 2006-12-14 Ramin Amin-Sanayei Aqueous process for making fluoropolymers
US8765890B2 (en) 2005-06-10 2014-07-01 Arkema Inc. Aqueous process for making fluoropolymers
GB0514387D0 (en) 2005-07-15 2005-08-17 3M Innovative Properties Co Aqueous emulsion polymerization of fluorinated monomers using a perfluoropolyether surfactant
US7671112B2 (en) 2005-07-15 2010-03-02 3M Innovative Properties Company Method of making fluoropolymer dispersion
GB0514398D0 (en) 2005-07-15 2005-08-17 3M Innovative Properties Co Aqueous emulsion polymerization of fluorinated monomers using a fluorinated surfactant
US8124699B2 (en) 2005-08-08 2012-02-28 Arkema Inc. Polymerization of fluoropolymers using alkyl phosphonate surfactants
ES2611988T3 (es) 2005-08-08 2017-05-11 Arkema Inc. Polimerización de fluoropolímeros usando tensioactivos no fluorados
CN100558753C (zh) 2005-10-17 2009-11-11 旭硝子株式会社 聚四氟乙烯水性乳化液、由其制得的聚四氟乙烯细粉和多孔体
WO2007046377A1 (ja) 2005-10-20 2007-04-26 Asahi Glass Company, Limited 溶融成形可能なフッ素樹脂の製造方法
JP5141256B2 (ja) 2005-10-20 2013-02-13 旭硝子株式会社 ポリテトラフルオロエチレン水性分散液およびその製品
EP1942118B1 (en) 2005-10-26 2013-09-11 Asahi Glass Company, Limited Fluororesin with low fluorine-containing emulsifier residual and method for producing same
EP1948706B1 (en) 2005-11-18 2012-09-19 E.I. Du Pont De Nemours And Company Core/shell polymer
US7728087B2 (en) 2005-12-23 2010-06-01 3M Innovative Properties Company Fluoropolymer dispersion and method for making the same
US20070282044A1 (en) 2006-05-31 2007-12-06 Robert John Cavanaugh Concentrated fluoropolymer dispersions stabilized with anionic polyelectrolyte dispersing agents
WO2008019155A1 (en) 2006-08-11 2008-02-14 The University Of North Carolina At Chapel Hill Process of fluoromonomer polymerization
WO2008060462A1 (en) 2006-11-09 2008-05-22 E. I. Du Pont De Nemours And Company Aqueous polymerization of fluorinated monomers using polymerization agent comprising fluoropolyether acid or salt and siloxane surfactant
JP5439186B2 (ja) 2006-11-09 2014-03-12 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー フルオロポリエーテル酸または塩および炭化水素系界面活性剤を含む重合剤を用いるフッ素化モノマーの水性重合
US7521513B2 (en) 2006-11-29 2009-04-21 Dupont Performance Elastomers Llc Semi-batch process for producing fluoroelastomers
US20080146757A1 (en) 2006-12-19 2008-06-19 Lyons Donald F Process for producing fluoroelastomers
US20080262177A1 (en) 2006-12-19 2008-10-23 Lyons Donald F Process for producing fluoroelastomers
WO2009013214A1 (en) 2007-07-20 2009-01-29 Solvay Solexis S.P.A. Process for polymer dispersions
EP2274345B1 (en) 2008-04-07 2017-01-04 Arkema Inc. Polymerization of fluoropolymers using polycaprolactone
US8153738B2 (en) 2008-12-23 2012-04-10 E I Du Pont De Nemours And Company Fluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer
WO2011024857A1 (ja) 2009-08-28 2011-03-03 ダイキン工業株式会社 含フッ素重合体の製造方法
US9434837B2 (en) 2010-09-01 2016-09-06 Arkema Inc. Method of producing fluoropolymers using acid-functionalized monomers
US20120157656A1 (en) 2010-12-17 2012-06-21 Nippon Shokubai Co, Ltd Polyalkylene glycol-based polymer and process for producing the same
EP2686354A4 (en) 2011-03-16 2014-10-15 Arkema Inc SYNTHESIS 2,3,3,3-TETRAFLUORPROPHIC FLUOROPOLYMERS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101535352A (zh) * 2006-11-09 2009-09-16 纳幕尔杜邦公司 使用包含氟聚醚酸或盐以及短链含氟表面活性剂的聚合剂进行的氟化单体的含水聚合反应
CN101547966A (zh) * 2006-12-08 2009-09-30 阿科玛股份有限公司 用于制造一种稳定的氟聚合物分散体的水性方法
CN101553528A (zh) * 2006-12-08 2009-10-07 阿科玛股份有限公司 用于制造氟聚合物的水性方法
CN103201301A (zh) * 2010-11-09 2013-07-10 纳幕尔杜邦公司 含氟单体的含水聚合反应中的成核作用
CN103201300A (zh) * 2010-11-09 2013-07-10 纳幕尔杜邦公司 使用烃表面活性剂的含氟单体的含水聚合
JP2013212438A (ja) * 2012-03-30 2013-10-17 Daikin Industries Ltd 非イオン性界面活性剤組成物、及び、フルオロポリマー水性分散液

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JP6622209B2 (ja) 2019-12-18
JP2016537499A (ja) 2016-12-01
CN106414510A (zh) 2017-02-15
US9676929B2 (en) 2017-06-13
US20150148481A1 (en) 2015-05-28
EP3074430B1 (en) 2019-02-20
WO2015081055A1 (en) 2015-06-04
EP3074430A1 (en) 2016-10-05

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