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
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)
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)
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)
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 |
-
1985
- 1985-08-28 US US06/770,259 patent/US4639497A/en not_active Expired - Lifetime
-
1986
- 1986-08-25 JP JP61197464A patent/JPS6253308A/ja active Granted
- 1986-08-27 EP EP86306612A patent/EP0214808B1/de not_active Expired
- 1986-08-27 DE DE8686306612T patent/DE3682984D1/de not_active Expired - Lifetime
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 |