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In 1936, he was hired as a research chemist by E.I. du Pont de Nemours and Company at its Jackson Laboratory in Deepwater, New Jersey. [ 1 ] In 1938, while attempting to make a new chlorofluorocarbon refrigerant, Plunkett's laboratory team discovered polytetrafluoroethylene (PTFE), better known as Teflon.
It had been accidentally invented in 1938 by DuPont chemist Roy Plunkett, as a by-product of chlorofluorocarbon refrigerant research. [ 21 ] [ 22 ] [ 23 ] After further industrial experience with General Mills Company back in Minneapolis and Spencer Kellogg & Sons, Inc. in Buffalo , Renfrew returned west in 1959 to his alma mater in Moscow to ...
Expanded polystyrene, used for building insulation, packaging, and cup, was invented by Dow Chemical. [1] 1957: Italian firm Montecatini begin large-scale commercial production of isotactic polypropylene. 1960s: High-density polyethylene bottles introduced and soon replace glass bottles in most applications [11] 1965
[10] [11]: 278–288 According to a 1935 news item in the Industrial and Engineering Chemistry journal, the purpose of the du Pont facility was to thoroughly test all du Pont products as a public health measure to determine the effects of du Pont's finished products on the "health of the ultimate consumer " and that the products "are safe ...
Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.
Claude Shannon (1916–2016), founder of information theory and modern cryptography, invented Minivac 601, and co-invented the first wearable computer (with Edward O. Thorp) Ugo Cerletti (1877–1963), together with Lucio Bini (1908–1964), Italy – Electroconvulsive therapy; Leona Chalmers (c. 1937), U.S. – modern menstrual cup
Richard Gurley Drew (June 22, 1899 – December 14, 1980) was an American inventor who worked for Johnson and Johnson, Permacel Co., and 3M in St. Paul, Minnesota, where he invented masking tape and cellophane tape. [1]
Thread seal tape is wrapped around the threads, lubricating the connection and allowing the two pieces to be screwed deeper together. Thread seal tape (also known as PTFE tape, Teflon tape, or plumber's tape) is a polytetrafluoroethylene (PTFE) film tape commonly used in plumbing for sealing pipe threads. The tape is sold cut to specific widths ...