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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.
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 ...
The remedy submission in turn delayed the commission's review deadline to April 4, 2017. The intended spins of the company businesses were expected to occur about 18 months after closing. [69] According to the Financial Times, the merger was "on track for approval in March" 2017. [70]
Cameras introduced in 1971 (3 P) V. Vehicles introduced in 1971 (5 C, 9 P) 1971 video games (5 P) Pages in category "Products introduced in 1971"
Kevlar KM2 is a synthetic para-aramid fiber produced by DuPont. The fiber is an evolution of the original Kevlar fiber. The following quotes summarize Kevlar KM2's ...
The Toys That Built America is an American nonfiction docudrama series that premiered on the History Channel on November 28, 2021. Each episode outlines the development of a popular toy, invention, or company in the United States, typically focusing on their rise and any rivals or struggles.
Aramid (Kevlar) sails, showing the typical color of the fabric. Kevlar, an aramid fiber, has become the predominant fiber for racing sails, since it was introduced by DuPont in 1971. It is stronger, has a higher strength to weight ratio than steel, and has a modulus that is five times greater than PET, and about twice as high as PEN.