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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.
DuPont chemist Stephanie Kwolek invented Kevlar in the 1960s, but this revolutionary, heat-resistant fiber didn't hit the market until 1971, when it was first used in place of steel in racing ...
1971: The first space station, Salyut 1, is launched. 1971: IBM developed and released the world's first floppy disk and disk drive. [504] 1972: The first video game console, used primarily for playing video games on a TV, is the Magnavox Odyssey. [505] 1973: The first fiber optic communication systems were developed by Optelecom. [506]
In the 1980s, Dr. Jacob Lahijani, Senior Chemist at DuPont, invented Kevlar 149 and was highlighted in the "Innovation: Agent of Change. [77] Kevlar 149 is used in armor, belts, hoses, composite structures, cable sheathing, gaskets, brake pads, clutch linings, friction pads, slot insulation, phase barrier insulation, and interturn insulation. [78]
Jacob Lahijani Invented Kevlar 149 used in Ballistic and Aerospace Application . This article is misleading and falsely credits Stephanie Kowlek who did not invent Kevlar 149 used for ballistics. The video of Lahijani describing how and why he invented Kevlar 149 is in the Hagley Museum, under "Agents of Change".
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)