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Stephanie Louise Kwolek (/ ˈ k w oʊ l ɛ k /; July 31, 1923 – June 18, 2014) was a Polish-American chemist best known for inventing Kevlar (poly-paraphenylene terephthalamide). ). Her career at the DuPont company spanned more than 40 ye
Kevlar was initially used as a replacement for steel-belting in tires, and later for use in ropes, gaskets, and automotive and aviation parts. [1] [3] In 1971, Shubin, who was then the Director of Science and Technology for the National Institute for Law Enforcement and Criminal Justice, [4] suggested using Kevlar to replace nylon in bullet ...
Kevlar (para-aramid) [2] is a strong, heat-resistant synthetic fiber, related to other aramids such as Nomex and Technora. Developed by Stephanie Kwolek at DuPont in 1965, [ 3 ] [ 2 ] [ 4 ] the high-strength material was first used commercially in the early 1970s as a replacement for steel in racing tires.
The National Inventors Hall of Fame is an American not-for-profit organization, founded in 1973, which recognizes individual engineers and inventors who hold a U.S. patent of significant technology. As of 2020, 603 inventors have been inducted, mostly constituting historic persons from the past three centuries, but including about 100 living ...
DuPont first invented Kevlar in 1965 and its Maydown manufacturing facility is one of only three places in the world where Kevlar is produced. The DuPont site at Maydown is now the lead partner in the University of Ulster 's Biodiversity Action on Industrial Site (BAIS) project that aims to enhance biodiversity on land close to industrial activity.
Computer-related introductions in 1971 (2 C, 14 P) Cameras introduced in 1971 (3 P) V. Vehicles introduced in 1971 (5 C, 9 P) 1971 video games (5 P)
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First issued in 1983 to replace the M1 helmet. Former kevlar helmet used by the United States Army, Marine Corps, Navy. Used by the USAF, but is being phased out by the ACH [46] US Air Force. [47] Adopted by the Mexican Armed Forces in the 1990s to replace the M1 helmet. Replaced the M1 helmet of the Argentine army and modified with padded ...