DE3682984D1 - Herstellung feinteiliger tetrafluorethylenpulverharze. - Google Patents

Herstellung feinteiliger tetrafluorethylenpulverharze.

Info

Publication number
DE3682984D1
DE3682984D1 DE8686306612T DE3682984T DE3682984D1 DE 3682984 D1 DE3682984 D1 DE 3682984D1 DE 8686306612 T DE8686306612 T DE 8686306612T DE 3682984 T DE3682984 T DE 3682984T DE 3682984 D1 DE3682984 D1 DE 3682984D1
Authority
DE
Germany
Prior art keywords
tetrafluorethylene
partic
fine
production
powder resins
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
DE8686306612T
Other languages
English (en)
Inventor
Alan Campbell Knight
Satish Chandra Malhotra
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 DE3682984D1 publication Critical patent/DE3682984D1/de
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
    • C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F114/18—Monomers containing fluorine
    • C08F114/26—Tetrafluoroethene

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)
  • Polymerization Catalysts (AREA)
DE8686306612T 1985-08-28 1986-08-27 Herstellung feinteiliger tetrafluorethylenpulverharze. Expired - Lifetime DE3682984D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/770,259 US4639497A (en) 1985-08-28 1985-08-28 Preparation of tetrafluoroethylene fine powder

Publications (1)

Publication Number Publication Date
DE3682984D1 true DE3682984D1 (de) 1992-01-30

Family

ID=25087964

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686306612T Expired - Lifetime DE3682984D1 (de) 1985-08-28 1986-08-27 Herstellung feinteiliger tetrafluorethylenpulverharze.

Country Status (4)

Country Link
US (1) US4639497A (de)
EP (1) EP0214808B1 (de)
JP (1) JPS6253308A (de)
DE (1) DE3682984D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8628291D0 (en) * 1986-11-26 1986-12-31 Ici Plc Tetrafluoroethylene polymers
US4908410A (en) * 1989-01-27 1990-03-13 E. I. Du Pont De Nemours And Company Modified polytetrafluoroethylene fine powder and preparation thereof
DE4402694A1 (de) * 1993-06-02 1995-08-03 Hoechst Ag Verfahren zur Rückgewinnung von fluorierten Carbonsäuren
DE4335705A1 (de) * 1993-10-20 1995-04-27 Hoechst Ag Herstellung eines modifizierten Polytetrafluorethylens und seine Verwendung
US6177533B1 (en) 1998-11-13 2001-01-23 E. I. Du Pont De Nemours And Company Polytetrafluoroethylene resin
US6136933A (en) * 1998-11-13 2000-10-24 E. I. Du Pont De Nemours And Company Process for polymerizing tetrafluoroethylene
EP1700869A1 (de) * 2005-03-11 2006-09-13 3M Innovative Properties Company Rückgewinnung fluorierter Tenside aus basischen Anionenaustauscherharzen enthaltend quartäre Ammoniumgruppen
US20100084343A1 (en) * 2007-02-16 2010-04-08 Mader Brian T System and process for the removal of fluorochemicals from water
DE102016124539B4 (de) 2016-12-15 2022-02-17 Voestalpine Metal Forming Gmbh Verfahren zum Herstellen lokal gehärteter Stahlblechbauteile

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613203A (en) * 1950-06-28 1952-10-07 Gen Electric Method for polymerizing tetrafluoroethylene
US3032543A (en) * 1959-02-04 1962-05-01 Du Pont Polymerization of tetrafluoroethylene
DE1720801C3 (de) * 1968-03-12 1975-01-16 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Verfahren zur Herstellung von fluorhaltigen Polymeren
US4016345A (en) * 1972-12-22 1977-04-05 E. I. Du Pont De Nemours And Company Process for polymerizing tetrafluoroethylene in aqueous dispersion
JPS5839443B2 (ja) * 1980-05-31 1983-08-30 ダイキン工業株式会社 ポリテトラフルオロエチレンフアインパウダ−の製造方法

Also Published As

Publication number Publication date
JPS6253308A (ja) 1987-03-09
JPS6234768B2 (de) 1987-07-29
EP0214808A2 (de) 1987-03-18
US4639497A (en) 1987-01-27
EP0214808A3 (en) 1988-05-04
EP0214808B1 (de) 1991-12-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee