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DE2145952A1 - - Google Patents

Info

Publication number
DE2145952A1
DE2145952A1 DE19712145952 DE2145952A DE2145952A1 DE 2145952 A1 DE2145952 A1 DE 2145952A1 DE 19712145952 DE19712145952 DE 19712145952 DE 2145952 A DE2145952 A DE 2145952A DE 2145952 A1 DE2145952 A1 DE 2145952A1
Authority
DE
GERMANY
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
DE19712145952
Other versions
DE2145952B2 (en
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.)
E I du Pont de Nemours and Co
Original Assignee
E I du Pont de Nemours and Co
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
Priority to US7249770A priority Critical
Application filed by E I du Pont de Nemours and Co filed Critical E I du Pont de Nemours and Co
Publication of DE2145952A1 publication Critical patent/DE2145952A1/de
Publication of DE2145952B2 publication Critical patent/DE2145952B2/en
Application status is Ceased legal-status Critical

Links

Classifications

    • 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
    • C08F6/00Post-polymerisation treatments
    • C08F6/14Treatment of polymer emulsions
    • C08F6/20Concentration
DE19712145952 1970-09-15 1971-09-14 A method for concentrating aqueous polytetrafluoraethylendispersionen Ceased DE2145952B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US7249770A true 1970-09-15 1970-09-15

Publications (2)

Publication Number Publication Date
DE2145952A1 true DE2145952A1 (en) 1972-03-16
DE2145952B2 DE2145952B2 (en) 1976-11-25

Family

ID=22107971

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712145952 Ceased DE2145952B2 (en) 1970-09-15 1971-09-14 A method for concentrating aqueous polytetrafluoraethylendispersionen

Country Status (7)

Country Link
US (1) US3704272A (en)
JP (1) JPS5221532B1 (en)
CA (1) CA930090A (en)
DE (1) DE2145952B2 (en)
FR (1) FR2106536B1 (en)
GB (1) GB1319206A (en)
NL (1) NL7112691A (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272186A (en) * 1992-05-01 1993-12-21 E. I. Du Pont De Nemours And Company Concentration of fluoropolymer dispersions using acrylic polymers of high acid content
JP3346090B2 (en) * 1995-03-31 2002-11-18 ダイキン工業株式会社 Aqueous polytetrafluoroethylene dispersion composition and use thereof
DE69933591T2 (en) * 1998-02-24 2007-08-16 Asahi Glass Company, Ltd. The polytetrafluoroethylene aqueous dispersion
CN1298782C (en) * 2002-05-20 2007-02-07 大金工业株式会社 Fluorinated resin water dispersion composition and fluorinated water base coating composition
CN100347204C (en) * 2002-11-29 2007-11-07 大金工业株式会社 Method for purification of aqueous fluoropolymer emulsions, purified emulsions, and fluorine-containing finished articles
ITMI20032050A1 (en) * 2003-10-21 2005-04-22 Solvay Solexis Spa Process for the preparation of sinks of fluoropolymers.
ITMI20040031A1 (en) 2004-01-14 2004-04-14 Solvay Solexis Spa Process for the preparation of fluoropolymers earthtermination
US7790041B2 (en) * 2004-08-11 2010-09-07 E.I. Du Pont De Nemours And Company Removing fluorosurfactant from aqueous fluoropolymer dispersions
US7659329B2 (en) * 2004-12-22 2010-02-09 E. I. Du Pont De Nemours And Company Removing fluorosurfactant from aqueous fluoropolymer dispersions using monodisperse ion exchange resin
US20060135681A1 (en) 2004-12-22 2006-06-22 Cavanaugh Robert J Viscosity control for reduced fluorosurfactant aqueous fluoropolymer dispersions by the addition of cationic surfactant
US7666927B2 (en) * 2004-12-22 2010-02-23 E.I. Du Pont De Nemours And Company Removing fluorosurfactant from aqueous fluoropolymer dispersions using anion exchange polymer with functional groups resistant to degradation to trialkylamines
US7619018B2 (en) * 2004-12-22 2009-11-17 E.I. Du Pont De Nemours And Company Process for removing fluorosurfactant from aqueous fluoropolymer dispersions and reducing scum formation
ITMI20042554A1 (en) 2004-12-30 2005-03-30 Solvay Solexis Spa Process for the preparation of fluoropolymer dispersions
ITMI20042553A1 (en) * 2004-12-30 2005-03-30 Solvay Solexis Spa Process for the preparation of fluoropolymer dispersions
US20060183842A1 (en) * 2005-02-10 2006-08-17 Johnson David W Fluoropolymer dispersions with reduced fluorosurfactant content and high shear stability
US7671111B2 (en) * 2005-02-10 2010-03-02 E.I. Du Pont De Nemours And Company Monitoring column breakthrough in a process for removing fluorosurfactant from aqueous fluoropolymer dispersions
US20060178472A1 (en) * 2005-02-10 2006-08-10 Johnson David W Process for producing low fluorosurfactant-containing aqueous fluoropolymer dispersions with controlled pH
EP1908791A4 (en) * 2005-04-13 2008-11-26 Daikin Ind Ltd Process for producing aqueous fluoropolymer dispersion
EP1897902A4 (en) * 2005-04-13 2008-10-29 Daikin Ind Ltd Process for producing aqueous fluoropolymer dispersion
ITMI20050705A1 (en) * 2005-04-20 2006-10-21 Solvay Solexis Spa Process for the preparation of fluoropolymers earthtermination
US7612139B2 (en) * 2005-05-20 2009-11-03 E.I. Du Pont De Nemours And Company Core/shell fluoropolymer dispersions with low fluorosurfactant content
US20060281845A1 (en) * 2005-06-10 2006-12-14 Ramin Amin-Sanayei Aqueous process for making fluoropolymers
ITMI20051397A1 (en) * 2005-07-21 2007-01-22 Solvay Solexis Spa Fine powders of fluoropolymers
US20070023360A1 (en) * 2005-08-01 2007-02-01 Noelke Charles J Removing fluorosurfactant from aqueous fluoropolymer dispersion using sorbent pouches
EP1845116A1 (en) * 2006-04-11 2007-10-17 Solvay Solexis S.p.A. Fluoropolymer dispersion purification
US7666928B2 (en) * 2006-05-31 2010-02-23 E.I. Du Pont De Nemours And Company Staged addition of non-fluorinated anionic surfactant to reduced fluorosurfactant fluoropolymer dispersion
US7666929B2 (en) * 2006-05-31 2010-02-23 E.I. Du Pont De Nemours And Company Process for reducing fluorosurfactant content of fluropolymer dispersions using anionic surfactant-treated anion exchange resin
US8058376B2 (en) * 2008-12-23 2011-11-15 E. I. Du Pont De Nemours And Company Fluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated lonomer produced in situ
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
US8835547B2 (en) 2008-12-23 2014-09-16 E I Du Pont De Nemours And Company Fluoropolymer particles having a nucleus of fluorinated ionomer
US8436054B2 (en) * 2008-12-23 2013-05-07 E I Du Pont De Nemours And Company Fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer produced in situ
US20100160584A1 (en) * 2008-12-23 2010-06-24 E. I. Du Pont De Nemours And Company Ethylene-Tetrafluoroethylene Carboxylic Acids and Salts
US20100160552A1 (en) * 2008-12-23 2010-06-24 E. I. Du Pont De Nemours And Company Aqueous Polymerization of Fluorinated Monomer Using Hydrogen Containing Branched Fluoroether Surfactant
US8436053B2 (en) * 2008-12-23 2013-05-07 E.I. Du Pont De Nemours And Company Fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer
US8329813B2 (en) * 2009-05-08 2012-12-11 E I Du Pont De Nemours And Company Thermal reduction of fluoroether carboxylic acids or salts from fluoropolymer dispersions
CN102558721B (en) 2010-12-31 2014-08-20 杜邦公司 Novel polytetrafluoroethylene aqueous dispersion
JP5981188B2 (en) * 2012-03-28 2016-08-31 東レ株式会社 The method of manufacturing polytetrafluoroethylene impregnated yarn

Also Published As

Publication number Publication date
JPS5221532B1 (en) 1977-06-11
GB1319206A (en) 1973-06-06
CA930090A1 (en)
FR2106536A1 (en) 1972-05-05
DE2145952B2 (en) 1976-11-25
CA930090A (en) 1973-07-10
NL7112691A (en) 1972-03-17
FR2106536B1 (en) 1976-06-04
US3704272A (en) 1972-11-28

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Legal Events

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