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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 (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.
Creative Urethane made the wheels to his specifications and Nasworthy took his company to California in 1972. Due to the infancy of skateboarding at this time, Nasworthy sold his wheels directly to surf shops along the coast of California, and placed some tentative advertisements featuring a young Gregg Weaver in surfing magazines. News of the ...
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 ...
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)
Whitney organized the first comprehensive survey of California, and the first complete topographic maps of the state were completed under him. Mount Whitney, the tallest peak in California is named after him. The State Mining Bureau was established in 1880, and the position of State Geologist was changed to State Mineralogist.
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.
Pages in category "1971 in California" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes. C. California v. Byers