ES2082926T3 - Estabilizacion de fluorpolimeros. - Google Patents

Estabilizacion de fluorpolimeros.

Info

Publication number
ES2082926T3
ES2082926T3 ES91306587T ES91306587T ES2082926T3 ES 2082926 T3 ES2082926 T3 ES 2082926T3 ES 91306587 T ES91306587 T ES 91306587T ES 91306587 T ES91306587 T ES 91306587T ES 2082926 T3 ES2082926 T3 ES 2082926T3
Authority
ES
Spain
Prior art keywords
fluoropolymer
dispersion
groups
stabilization
aqueous 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 - Lifetime
Application number
ES91306587T
Other languages
English (en)
Inventor
Howard Charles Gibbard
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of ES2082926T3 publication Critical patent/ES2082926T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C08F2/00—Processes of polymerisation

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)
  • Polymerisation Methods In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

UN METODO PARA LA ESTABILIZACION Y AISLAMIENTO DE UN FLUOROPOLIMERO, LLEVANDO GRUPOS DE ACIDO CARBOXILICO (-CO SUB 2 H) Y PREPARADO COMO UNA DISPERSION ACUOSA, UTILIZANDO UN PROCESO DE POLIMERIZACION DE DISPERSION QUE EMPLEA UN AGENTE DISPERSANTE CUYO EFECTO DE ESTABILIZAR LA DISPERSION ES SEPARABLE MEDIANTE EL CALENTAMIENTO DE LA DISPERSION Y UN INICIADOR (O SISTEMA INICIADOR) QUE PRODUCE GRUPOS DE ACIDO CARBOXILICO EN EL FLUOROPOLIMERO, CUYO METODO COMPRENDE, EL DESPUES DE PREPARAR UNA DISPERSION ACUOSA DEL FLUOROPOLIMERO UTILIZANDO UNA POLIMERIZACION DE DISPERSION, CONVERTIR LOS GRUPOS DE ACIDO CARBOXILIO EN EL FLUOROPOLIMERO EN LA DISPERSION ACUOSA, EN GRUPOS ANIONES CARBOXILADOS (-CO SUB 2-) UTILIZANDO UNA BASE Y DESPUES CALENTAR LA DISPERSION DE FLUOROPOLIMERO ASI MODIFICADA PARA CAUSAR SIMULTANEAMENTE: 1) LA SEPARACION SUSTANCIAL DE LOS GRUPOS ANIONES CARBOXILADOS, Y ASI PRODUCIR EN SU LUGAR GRUPOS ESTABLES, Y 2) EL AISLAMIENTO DEL FLUOROPOLIMERO DE LA DISPERSION POR COAGULACION (AGLOMERACION) DE LA DISPERSION DE FLUOROPOLIMERO.
ES91306587T 1990-08-03 1991-07-19 Estabilizacion de fluorpolimeros. Expired - Lifetime ES2082926T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909017156A GB9017156D0 (en) 1990-08-03 1990-08-03 Stabilisation of fluoropolymers

Publications (1)

Publication Number Publication Date
ES2082926T3 true ES2082926T3 (es) 1996-04-01

Family

ID=10680195

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91306587T Expired - Lifetime ES2082926T3 (es) 1990-08-03 1991-07-19 Estabilizacion de fluorpolimeros.

Country Status (13)

Country Link
US (1) US5180803A (es)
EP (1) EP0469759B1 (es)
JP (1) JP3113704B2 (es)
KR (1) KR0180546B1 (es)
AT (1) ATE133691T1 (es)
AU (1) AU635145B2 (es)
CA (1) CA2047854A1 (es)
DE (1) DE69116764T2 (es)
ES (1) ES2082926T3 (es)
GB (2) GB9017156D0 (es)
GR (1) GR3018859T3 (es)
TW (1) TW199166B (es)
ZA (1) ZA915787B (es)

Families Citing this family (24)

* 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
IT1271422B (it) * 1993-10-15 1997-05-28 Ausimont Spa Procedimento per la preparazione di copolimeri del tetrafluoroetilene con altri monomeri perfluorurati
US20030124125A1 (en) * 1996-04-05 2003-07-03 South Alabama Medical Science Foundation Oncofetal antigen specific T-lymphocyte mediated immune response: manipulation and uses of oncofetal antigen specific CD4, CD8 cytotoxic and suppressor T cells and interleukin-10
US5733981A (en) * 1996-08-26 1998-03-31 Minnesota Mining And Manufacturing Company Aqueous dehydrofluorination method
US6689833B1 (en) 1997-04-09 2004-02-10 E. I. Du Pont De Nemours And Company Fluoropolymer stabilization
JPH11246607A (ja) * 1998-02-27 1999-09-14 Asahi Glass Co Ltd ポリテトラフルオロエチレンを含む水性分散液の製造方法
EP1083189A4 (en) * 1998-03-09 2006-03-15 Daikin Ind Ltd STABILIZED FLUORINATED POLYMER AND METHOD OF STABILIZING THE SAME
JP4792612B2 (ja) 1998-11-04 2011-10-12 ダイキン工業株式会社 含フッ素重合体の安定化方法
DE69939560D1 (de) * 1998-11-13 2008-10-23 Daikin Ind Ltd Fluorelastomer und vernetzbare Zusammensetzung daraus
US7049380B1 (en) * 1999-01-19 2006-05-23 Gore Enterprise Holdings, Inc. Thermoplastic copolymer of tetrafluoroethylene and perfluoromethyl vinyl ether and medical devices employing the copolymer
ITMI20021561A1 (it) * 2002-07-16 2004-01-16 Ausimont Spa Copolimeri di tfe
US20040024448A1 (en) * 2002-08-05 2004-02-05 Chang James W. Thermoplastic fluoropolymer-coated medical devices
EP1602687B1 (en) * 2003-03-03 2012-01-04 Daikin Industries, Ltd. Liquid fluoropolymer composition, process for producing organosol, film, and fuel cell
US20100022702A1 (en) * 2006-12-12 2010-01-28 Chen Lisa P Thermally stable fluoropolymers
EP2322568B1 (en) 2009-11-13 2013-05-15 Borealis AG Process for producing an olefin polymerization catalyst
US20120329923A1 (en) * 2011-06-22 2012-12-27 Arkema Inc. Fluoropolymer composition
US9133337B2 (en) * 2012-02-09 2015-09-15 Georgia-Pacific Chemicals Llc Methods for making polymer particulates in gel form
US9175115B2 (en) 2012-05-09 2015-11-03 The Chemours Company Fc, Llc Fluoropolymer resin treatment employing heating and oxygen source to reduce discoloration
US9175110B2 (en) 2012-05-09 2015-11-03 The Chemours Company Fc, Llc Fluoropolymer resin treatment employing melt extrusion and exposure to oxygen source to reduce discoloration
US20130303709A1 (en) * 2012-05-09 2013-11-14 E I Du Pont De Nemours And Company Fluoropolymer Dispersion Treatment Employing High pH and Oxygen Source to Reduce Fluoropolymer Resin Discoloration
US8785516B2 (en) 2012-05-09 2014-07-22 E I Du Pont De Nemours And Company Fluoropolymer dispersion treatment employing ultraviolet light and oxygen source to reduce fluoropolymer resin discoloration
US9175112B2 (en) 2012-05-09 2015-11-03 The Chemours Company Fc, Llc Drying wet fluoropolymer resin and exposing to oxygen source to reduce discoloration
US8785560B2 (en) 2012-05-09 2014-07-22 E I Du Pont De Nemours And Company Employing pretreatment and fluorination of fluoropolymer resin to reduce discoloration
US9574027B2 (en) 2013-03-11 2017-02-21 The Chemours Company Fc, Llc Fluoropolymer resin treatment employing sorbent to reduce fluoropolymer resin discoloration

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL251214A (es) * 1959-05-05
US3752789A (en) * 1971-08-20 1973-08-14 Du Pont Isolation of a fluoropolymer from a latex
FR2484422A1 (fr) * 1980-05-14 1981-12-18 Ugine Kuhlmann Procede de traitement de dispersions aqueuses de polytetrafluorethylene preparees en presence du sel de lithium d'un acide perfluoroalcanesulfonique
US4599386A (en) * 1984-10-18 1986-07-08 E. I. Du Pont De Nemours And Company Heat stable tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymers
DE3585092D1 (de) * 1985-11-08 1992-02-13 Du Pont Schmelzverarbeitbare copolymere von tetrafluoraethylen und perfluorolefinen und verfahren zu ihrer herstellung.
EP0226668B1 (en) * 1985-11-08 1992-01-08 E.I. Du Pont De Nemours And Company Process for treating melt-processible tetrafluoroethylene/perfluoro(alkyl vinyl)- ether copolymers
JPH075744B2 (ja) * 1990-05-14 1995-01-25 ダイキン工業株式会社 ポリテトラフルオロエチレン粉末の製法

Also Published As

Publication number Publication date
DE69116764T2 (de) 1996-05-30
JPH05148312A (ja) 1993-06-15
JP3113704B2 (ja) 2000-12-04
GB9115696D0 (en) 1991-09-04
ZA915787B (en) 1992-05-27
GR3018859T3 (en) 1996-05-31
KR920004425A (ko) 1992-03-27
TW199166B (es) 1993-02-01
ATE133691T1 (de) 1996-02-15
AU8123991A (en) 1992-02-06
EP0469759B1 (en) 1996-01-31
CA2047854A1 (en) 1992-02-04
AU635145B2 (en) 1993-03-11
US5180803A (en) 1993-01-19
KR0180546B1 (ko) 1999-05-15
EP0469759A1 (en) 1992-02-05
GB9017156D0 (en) 1990-09-19
DE69116764D1 (de) 1996-03-14

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