I think Teflon was a result of a Manhattan Project commission
Actually teflon was an accident in a lab where they were working on alternative refrigerants several years before the Manhattan Project existed. (old refrigerators used anhydrous ammonia or sulfur dioxide, so saying "it kind sucked if they started to leak" is a major understatement.)
And the chemical eventually chosen to replace those used in refrigeration, and also in many other things, was Freon, a chlorofluorocarbon. It was invented by Thomas Midgley, Jr.
He also was the bright person who realized that adding tetra-ethyl lead to gasoline made an engine stop knocking. He was responsible for the 'discovery' of, or the discovery of a use of, two of the most dangerous chemicals of the 20th century. Freon did great damage to the Ozone Layer. Humans living today have some 600 or so times more lead in their systems than those who lived before the use of tetra-ethyl lead as an additive in gasoline.
Truly, the world would be a better place if he had picked another career, like dentistry, if he had to be born at all.
The more you know!