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1) "Teflon" -- As to teflon dupont Tef·lon
Pronunciation: 'te-"flän
Function: trademark
-- used for synthetic fluorine-containing resins used especially for molding articles and for nonstick coatings Pronunciation Symbols
Teflon is the DuPont trademark for its polytetrafluoroethylene (PTFE), a polymer of fluorinated ethylene. 3D model of a section of PTFE Polytetrafluoroethylene (PTFE), is a synthetic fluoropolymer which finds numerous applications. PTFE most well known trademark in the industry is the DuPont brand name Teflon as DuPont discovered PTFE (see below History). PTFE has an extremely low coefficient of friction and is used as a non-stick coating for pans and other cookware. It is very non-reactive, and so is often used in containers and pipework for reactive and corrosive chemicals. - 1 History
- 2 Properties and applications
- 3 Production
- 4 Safety
- 5 Similar polymers
- 6 References
- 7 External links
- 7.1 Industry Information on Teflon PTFE
- 7.2 Teflon in the Kitchen
- 7.3 Environmental Debate on Teflon / PFOA / C-8
- 7.4 Other Teflon Brand Issues
- 7.5 Chemical
| PTFE was discovered serendipitously by Roy Plunkett of DuPont in 1938[1], while attempting to make a new CFC refrigerant, when the perfluorethylene polymerized in its pressurized storage container. (In this original chemical reaction, iron from the inside of the container acted as a catalyst.) DuPont patented it in 1941 and registered the Teflon trademark in 1944. [2] An early advanced use was in the Manhattan Project as a material to coat valves and seals in the pipes holding highly reactive uranium hexafluoride in the vast uranium enrichment plant at Oak Ridge, Tennessee, when it was known as K416. It was first sold commercially in 1946 and by 1950, DuPont was producing over a million pounds (450 t) per year in Parkersburg, ..."
2) "Dupont" -- As to teflon dupont Du Pont
Pronunciation: dü-'pänt, dyü-; 'd(y)ü-"
Function: biographical name
Éleuthère Irénée 1771-1834 son of P.S. Du Pont de Nemours American (French-born) industrialist Pronunciation Symbols
Dupont, DuPont, Du Pont, or du Pont may refer to: - 1 Companies
- 2 Places
- 3 People
- 4 Other
| - DuPont (E.I. du Pont de Nemours and Company), the world's second largest chemical company
- Du Pont Motors
- Gilbert Dupont, a French stock brokerage part of retail banking network Crédit du Nord
- ST Dupont, a French manufacturer of fine writing instruments
- DuPont, Washington, United States
- Du Pont, Georgia
- Dupont, Indiana
- Dupont, Ohio
- Dupont, Pennsylvania
- Dupont, Tennessee
- Dupont, Wisconsin
- Dupont Circle, a neighborhood in Washington, D.C.
- the American family of Pierre Samuel du Pont de Nemours
- Jacques-Charles Dupont de l'Eure
- Ewald André Dupont
- Clifford Dupont, President of Rhodesia
- Pierre Dupont
- Pierre Dupont de l'Étang
- Tiffany Dupont
- Alexis I. duPont High School, Greenville, Delaware
- Super Dupont, a French graphic novel
- duPont-Columbia Award
- duPont Registry
- Tour DuPont, a former bicycle race
- USS Du Pont (DD-152)
- USS Du Pont (DD-941)
- Du Pont Identity, financial analysis tool
- Dupont Station, a metro station in Toronto
- DuPont Manual Magnet High School, Louisville, Kentucky
- Dupond et Dupont, the original French name of Thomson and Thompson, characters in the comic strip The Adventures of Tintin
- Dupont Challenge is a scholarship provided by the Dupont company.
..."
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