DE3168111D1 - Process for separating the polymer from an aqueous polytetrafluoroethylene dispersion prepared in the presence of a lithium salt of perfluoro alkanesulfonic acid - Google Patents

Process for separating the polymer from an aqueous polytetrafluoroethylene dispersion prepared in the presence of a lithium salt of perfluoro alkanesulfonic acid

Info

Publication number
DE3168111D1
DE3168111D1 DE8181400702T DE3168111T DE3168111D1 DE 3168111 D1 DE3168111 D1 DE 3168111D1 DE 8181400702 T DE8181400702 T DE 8181400702T DE 3168111 T DE3168111 T DE 3168111T DE 3168111 D1 DE3168111 D1 DE 3168111D1
Authority
DE
Germany
Prior art keywords
separating
polymer
lithium salt
dispersion prepared
alkanesulfonic acid
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.)
Expired
Application number
DE8181400702T
Other languages
German (de)
English (en)
Inventor
Jean Blaise
Jean-Louis Herisson
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.)
Arkema France SA
Original Assignee
Atochem SA
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 Atochem SA filed Critical Atochem SA
Application granted granted Critical
Publication of DE3168111D1 publication Critical patent/DE3168111D1/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08F6/00—Post-polymerisation treatments
    • C08F6/14—Treatment of polymer emulsions

Landscapes

  • 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)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE8181400702T 1980-05-14 1981-05-05 Process for separating the polymer from an aqueous polytetrafluoroethylene dispersion prepared in the presence of a lithium salt of perfluoro alkanesulfonic acid Expired DE3168111D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8010793A FR2484422A1 (fr) 1980-05-14 1980-05-14 Procede de traitement de dispersions aqueuses de polytetrafluorethylene preparees en presence du sel de lithium d'un acide perfluoroalcanesulfonique

Publications (1)

Publication Number Publication Date
DE3168111D1 true DE3168111D1 (en) 1985-02-21

Family

ID=9241967

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181400702T Expired DE3168111D1 (en) 1980-05-14 1981-05-05 Process for separating the polymer from an aqueous polytetrafluoroethylene dispersion prepared in the presence of a lithium salt of perfluoro alkanesulfonic acid

Country Status (5)

Country Link
US (1) US4384092A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0040136B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS578225A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3168111D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2484422A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564661A (en) * 1985-03-12 1986-01-14 E. I. Du Pont De Nemours And Company Tertiary perfluoroalkoxides as surfactants in PTFE dispersion polymerization
US4555556A (en) * 1985-03-12 1985-11-26 E. I. Du Pont De Nemours And Company Tertiary perfluorinated compounds as rate enhancing additives in PTFE dispersion polymerization
DE3513262A1 (de) * 1985-04-13 1986-10-23 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung eines agglomerierten formpulvers aus polytetrafluorethylen und metallischen fuellstoffen
GB9017156D0 (en) * 1990-08-03 1990-09-19 Ici Plc Stabilisation of fluoropolymers
AU4852393A (en) * 1993-08-27 1995-03-21 W.L. Gore & Associates, Inc. Polymerization of liquid tetrafluoroethylene in aqueous dispersion
DE69417537T2 (de) * 1993-08-27 1999-10-28 W.L. Gore & Associates, Inc. Polymerisation von flüssigem tetrafluorethylen in wässriger dispersion
US5504170A (en) * 1993-08-27 1996-04-02 W. L. Gore & Associates, Inc. Aqueous microemulsion polymerization of tetrafluoroethylene
US6046271A (en) * 1995-01-18 2000-04-04 W. L. Gore & Associates, Inc. Microemulsion polymerization systems for the production of small melt-processible fluoropolymer particles
US5895799A (en) * 1995-01-18 1999-04-20 W. L. Gore & Associates, Inc. Microemulsion polymerization process for the production of small polytetrafluoroethylene polymer particles
DE69510958T2 (de) * 1995-01-18 1999-11-11 W.L. Gore & Associates, Inc. Microemulsionspolymerisation-systeme für tetrafluorethylen
WO1996022315A1 (en) * 1995-01-18 1996-07-25 W.L. Gore & Associates, Inc. Microemulsion polymerization systems for fluoromonomers
US5688884A (en) * 1995-08-31 1997-11-18 E. I. Du Pont De Nemours And Company Polymerization process
US5789508A (en) * 1995-08-31 1998-08-04 E. I. Du Pont De Nemours And Company Polymerization process
US5889104A (en) * 1996-01-11 1999-03-30 W. L. Gore & Associates, Inc. Low dielectric constant material for use as an insulation element in an electronic device
EP0769788A3 (en) 1995-10-20 1998-01-14 W.L. Gore & Associates, Inc. Low dielectric constant material for use as an insulation element in an electronic device
US5763552A (en) * 1996-07-26 1998-06-09 E. I. Du Pont De Nemours And Company Hydrogen-containing flourosurfacant and its use in polymerization
EP0972303A1 (en) * 1997-04-03 2000-01-19 W.L. Gore & Associates, Inc. Low dielectric constant material with improved dielectric strength
US6689833B1 (en) * 1997-04-09 2004-02-10 E. I. Du Pont De Nemours And Company Fluoropolymer stabilization
US6040370A (en) * 1997-04-17 2000-03-21 General Electric Company Aqueous fluoropolymer dispersion and method for making fluoropolymer-containing thermoplastic resin composition
DE19733077A1 (de) * 1997-07-31 1999-02-04 Clariant Gmbh Neue Kolloiddispersions-Mischungen als Schutzkolloid für die wäßrige Emulsionspolymerisation, Verfahren zu ihrer Herstellung und ihre Verwendung
US20070155891A1 (en) * 2003-12-09 2007-07-05 Daikin Industries, Ltd. Water base dispersion of fluorinated polymer and process for producing the same
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
US7932333B2 (en) * 2006-11-09 2011-04-26 E.I. Du Pont De Nemours And Company Aqueous polymerization of fluorinated monomer using polymerization agent comprising high molecular weight fluoropolyether acid or salt and fluoropolyether acid or salt surfactant
JP2016113466A (ja) * 2014-12-10 2016-06-23 株式会社クレハ フッ化ビニリデン系樹脂組成物および成形物ならびにそれらの製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559751A (en) * 1950-06-29 1951-07-10 Du Pont Fluoroalkylsulfuric compounds
GB931959A (en) * 1960-03-04 1963-07-24 Kettering Found Charles F A fuel cell
FR1292771A (fr) * 1960-06-22 1962-05-04 Ici Ltd Compositions de polytétrafluoréthylène à mouler
US3345317A (en) * 1963-04-04 1967-10-03 Thiokol Chemical Corp Emulsion polymerization of tetrafluoroethylene using trifluorotrichloroethane as emulsion stabilizer
US3419522A (en) * 1965-11-22 1968-12-31 Du Pont Nongraying, nonyellowing polytetrafluoroethylene molding powder
GB1364081A (en) * 1970-07-25 1974-08-21 Daikin Ind Ltd Polymer compositions
FR2125752A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-02-19 1972-09-29 Ugine Kuhlmann
US3752789A (en) * 1971-08-20 1973-08-14 Du Pont Isolation of a fluoropolymer from a latex
FR2286153A1 (fr) * 1974-09-24 1976-04-23 Ugine Kuhlmann Procede de polymerisation ou de copolymerisation en emulsion du fluorure de vinylidene
FR2289583A1 (fr) * 1974-10-29 1976-05-28 Ugine Kuhlmann Compositions de revetement a base de polytetrafluorethylene
US4169087A (en) * 1977-08-24 1979-09-25 E. I. Dupont De Nemours And Co. Product and process of preparing tetrafluoroethylene polymer aqueous dispersions

Also Published As

Publication number Publication date
FR2484422B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1982-06-11
EP0040136A1 (fr) 1981-11-18
US4384092A (en) 1983-05-17
JPH0217574B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-04-20
FR2484422A1 (fr) 1981-12-18
EP0040136B1 (fr) 1985-01-09
JPS578225A (en) 1982-01-16

Similar Documents

Publication Publication Date Title
DE3168111D1 (en) Process for separating the polymer from an aqueous polytetrafluoroethylene dispersion prepared in the presence of a lithium salt of perfluoro alkanesulfonic acid
EP0017500A3 (en) A process for the separation of a strong mineral acid from an aqueous solution
YU110881A (en) Process for obtaining stable aqueous polymeric dispersions
DE3070401D1 (en) Electrolysis apparatus using a diaphragm of a solid polymer electrolyte, and a method for the production of the same
YU201781A (en) Process for the micro-encapsulation of bikampicillin acid salts
GB2047564B (en) Separator membrane and process using such membrane for removing ions from an aqueous solution
AU570409B2 (en) Apparatus for the manufacture of sulphuric acid
HUT35237A (en) Herbicide and growth-regulating preparatives consisting of - as reagents - cyclohexane-dion-carbonic acid derivatives and process for production of the reagens
ZA811676B (en) A process for the preparation of sulfuric acid
DE3176100D1 (en) Method of making flexible separators for alkaline batteries
ZW15381A1 (en) Aqueous dispersons of film-forming polymer particles
DE3161532D1 (en) Method for the preparation of compounds having a perfluoroalkyl group, in acid media containing zinc
DE3066692D1 (en) Process for the preparation of aqueous polymer dispersions
DE3166087D1 (en) Process for the production of 2-hydroxynaphthalene-6-carboxylic acid
DE3168223D1 (en) Process for the preparation of dispersions of ethylene-vinylester polymers
ZA818047B (en) Cathode for an electrolytic cell for producting aluminium via the fused salt electrolytic process
DE3477670D1 (en) Process for preparing an aqueous dispersion of polytetrafluoroethylene
PL248598A1 (en) Method of separation of arsenic from acid solutions
YU45556B (en) Process for obtaining sulfone 2-beta-chloromethyl-2-alpha-methyl penam-3-alpha-carboxylic acid
AU548059B2 (en) Process for making p-hydroxymethylbenzoic acid
YU187080A (en) Process for obtaining 2-amino-3-(alkylthiobenzoyl)-phenylacetic acid
DE3273184D1 (en) Process for preparing chlorosulfonic acid
DE3160107D1 (en) Process for the preparation of 1-naphthylamine-4,6-disulfonic acid and 1-naphthylamine-2,4,6-trisulfonic acid
JPS54127068A (en) Coagulation separating method
GB2077735B (en) Process for the preparation of o,o-dialkylthiono-phosphoric acid chlorides

Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee