CA2396630A1 - Process for working up aqueous dispersions of fluoropolymers - Google Patents

Process for working up aqueous dispersions of fluoropolymers Download PDF

Info

Publication number
CA2396630A1
CA2396630A1 CA002396630A CA2396630A CA2396630A1 CA 2396630 A1 CA2396630 A1 CA 2396630A1 CA 002396630 A CA002396630 A CA 002396630A CA 2396630 A CA2396630 A CA 2396630A CA 2396630 A1 CA2396630 A1 CA 2396630A1
Authority
CA
Canada
Prior art keywords
dispersion
gas
pressure
fluoropolymers
aqueous
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.)
Abandoned
Application number
CA002396630A
Other languages
English (en)
French (fr)
Inventor
Klaus Hintzer
Albert Killich
Bernhard Hirsch
Rudolf Erber
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.)
3M Innovative Properties Co
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2396630A1 publication Critical patent/CA2396630A1/en
Abandoned 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
    • C08F6/22—Coagulation

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)
CA002396630A 2000-02-01 2001-01-31 Process for working up aqueous dispersions of fluoropolymers Abandoned CA2396630A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10004229.5 2000-02-01
DE2000104229 DE10004229A1 (de) 2000-02-01 2000-02-01 Verfahren zur Aufarbeitung wäßriger Dispersionen von Fluorpolymeren
PCT/US2001/003152 WO2001057096A1 (en) 2000-02-01 2001-01-31 Process for working up aqueous dispersions of fluoropolymers

Publications (1)

Publication Number Publication Date
CA2396630A1 true CA2396630A1 (en) 2001-08-09

Family

ID=7629375

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002396630A Abandoned CA2396630A1 (en) 2000-02-01 2001-01-31 Process for working up aqueous dispersions of fluoropolymers

Country Status (6)

Country Link
EP (1) EP1268573A1 (ja)
JP (1) JP2003522230A (ja)
AU (1) AU2001236598A1 (ja)
CA (1) CA2396630A1 (ja)
DE (1) DE10004229A1 (ja)
WO (1) WO2001057096A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6720360B1 (en) * 2000-02-01 2004-04-13 3M Innovative Properties Company Ultra-clean fluoropolymers
US6593416B2 (en) 2000-02-01 2003-07-15 3M Innovative Properties Company Fluoropolymers
CN101193954B (zh) 2005-05-12 2011-08-10 日东电工株式会社 聚四氟乙烯粒子凝集物的制造方法及聚四氟乙烯成形体的制造方法
US20080015304A1 (en) 2006-07-13 2008-01-17 Klaus Hintzer Aqueous emulsion polymerization process for producing fluoropolymers
US8268221B2 (en) 2006-05-01 2012-09-18 Nitto Denko Corporation Process for production of polytetrafluoroethylene sheet, and process for production of polytetrafluoroethylene seal tape
US20080264864A1 (en) 2007-04-27 2008-10-30 3M Innovative Properties Company PROCESS FOR REMOVING FLUORINATED EMULSIFIER FROM FLUOROPOLMER DISPERSIONS USING AN ANION-EXCHANGE RESIN AND A pH-DEPENDENT SURFACTANT AND FLUOROPOLYMER DISPERSIONS CONTAINING A pH-DEPENDENT SURFACTANT

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464964A (en) * 1966-06-13 1969-09-02 Pennsalt Chemicals Corp Coagulation of polytetrafluoroethylene latex
US4623678A (en) * 1985-04-26 1986-11-18 The Dow Chemical Company Method for shear coagulation of latex resins
DE4233824A1 (de) * 1992-10-08 1994-04-14 Hoechst Ag Verfahren zur Aufarbeitung wäßriger Dispersionen von Fluorthermoplasten

Also Published As

Publication number Publication date
EP1268573A1 (en) 2003-01-02
AU2001236598A1 (en) 2001-08-14
JP2003522230A (ja) 2003-07-22
DE10004229A1 (de) 2001-08-02
WO2001057096A1 (en) 2001-08-09

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Legal Events

Date Code Title Description
FZDE Discontinued