CA930090A - Concentration of polytetrafluoroethylene aqueous dispersion - Google Patents

Concentration of polytetrafluoroethylene aqueous dispersion

Info

Publication number
CA930090A
CA930090A CA121837A CA121837A CA930090A CA 930090 A CA930090 A CA 930090A CA 121837 A CA121837 A CA 121837A CA 121837 A CA121837 A CA 121837A CA 930090 A CA930090 A CA 930090A
Authority
CA
Canada
Prior art keywords
concentration
aqueous dispersion
polytetrafluoroethylene aqueous
polytetrafluoroethylene
dispersion
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
CA121837A
Inventor
A. Holmes David
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.)
EIDP Inc
Original Assignee
EI 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
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of CA930090A publication Critical patent/CA930090A/en
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
    • C08F6/20—Concentration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Paints Or Removers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
CA121837A 1970-09-15 1971-08-31 Concentration of polytetrafluoroethylene aqueous dispersion Expired CA930090A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA930090A true CA930090A (en) 1973-07-10

Family

ID=22107971

Family Applications (1)

Application Number Title Priority Date Filing Date
CA121837A Expired CA930090A (en) 1970-09-15 1971-08-31 Concentration of polytetrafluoroethylene aqueous dispersion

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 (38)

* 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 Polytetrafluoroethylene aqueous dispersion composition and use thereof
WO1999043750A1 (en) * 1998-02-24 1999-09-02 Asahi Glass Fluoropolymers Co. Ltd. Aqueous polytetrafluoroethylene dispersion composition
ATE503799T1 (en) * 2002-05-20 2011-04-15 Daikin Ind Ltd AQUEOUS FLUORORESIN DISPERSION COMPOSITION AND WATER-BASED FLUORINATED COATING COMPOSITION
AU2003268760A1 (en) * 2002-11-29 2004-06-23 Daikin Industries, Ltd. 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 FLUOROPOLYMER DISPERSERS.
ITMI20040031A1 (en) 2004-01-14 2004-04-14 Solvay Solexis Spa PROCESS FOR THE PREPARATION OF FLUOROPOLYMER DISPERSERS
US7790041B2 (en) * 2004-08-11 2010-09-07 E.I. Du Pont De Nemours And Company Removing fluorosurfactant from aqueous fluoropolymer dispersions
US20070023360A1 (en) * 2005-08-01 2007-02-01 Noelke Charles J Removing fluorosurfactant from aqueous fluoropolymer dispersion using sorbent pouches
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
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
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 PROCEDURE FOR THE PREPARATION OF FLUOROPOLYMER DISPERSIONS
ITMI20042553A1 (en) 2004-12-30 2005-03-30 Solvay Solexis Spa PROCESS FOR THE PREPARATION OF 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
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
JP4784603B2 (en) * 2005-04-13 2011-10-05 ダイキン工業株式会社 Method for producing aqueous fluoropolymer dispersion
CN101155858A (en) * 2005-04-13 2008-04-02 大金工业株式会社 Process for producing aqueous fluoropolymer dispersion
ITMI20050705A1 (en) * 2005-04-20 2006-10-21 Solvay Solexis Spa PROCESS FOR THE PREPARATION OF FLUOROPOLYMER DISPERSERS
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
EP1845116A1 (en) * 2006-04-11 2007-10-17 Solvay Solexis S.p.A. Fluoropolymer dispersion purification
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
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
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
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
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
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
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
US20100160584A1 (en) * 2008-12-23 2010-06-24 E. I. Du Pont De Nemours And Company Ethylene-Tetrafluoroethylene Carboxylic Acids and Salts
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 Method for producing polytetrafluoroethylene-impregnated yarn
CN110577611B (en) * 2019-08-19 2023-02-24 浙江孚诺林化工新材料有限公司 Preparation method of vinylidene fluoride polymer aqueous dispersion liquid for coating

Also Published As

Publication number Publication date
DE2145952B2 (en) 1976-11-25
FR2106536A1 (en) 1972-05-05
DE2145952A1 (en) 1972-03-16
NL7112691A (en) 1972-03-17
JPS5221532B1 (en) 1977-06-11
GB1319206A (en) 1973-06-06
FR2106536B1 (en) 1976-06-04
US3704272A (en) 1972-11-28

Similar Documents

Publication Publication Date Title
CA930090A (en) Concentration of polytetrafluoroethylene aqueous dispersion
CA946782A (en) Concentration of electrolyte from dilute washings
CA930484A (en) Concentration of spodumene using flotation
CA929484A (en) Concentration process
CA968909A (en) Stabilization of pigments
CA972113A (en) Desize-scouring of textiles
CA941331A (en) Irradiated polytetrafluoroethylene
CA882159A (en) Preparation of mercaptoethanol
CA946392A (en) Preparation of thionamides
CA839776A (en) Concentration of minerals
CA831469A (en) Concentration of aqueous coffee extracts
CA881663A (en) Concentration of aqueous solutions
CA837471A (en) Preservation of aqueous dispersions with bromocyanoacetamides
CA846128A (en) Concentration of tea
AU436419B2 (en) Concentration of electrolyte from dilute washings
CA846749A (en) Concentration process
AU454273B2 (en) Concentration process
CA843542A (en) Aqueous electrolyte emulsion
CA847943A (en) Preparation of aqueous methylsilsesquioxane dispersions
CA972131A (en) Desize-scouring of textiles
CA854209A (en) Chlorination of aminopyrazinoates
CA839768A (en) Preparation of mercaptides
CA936151A (en) Preparation of hyperbasic dispersions
AU458338B2 (en) Preparation of hyperbasic dispersions
AU2714871A (en) Concentration of electrolyte from dilute washings