Public or Private: Public
E.I. du Pont de Nemours and Company was an American chemical company that made polymer products, including neoprene, nylon, Corian, Teflon, Mylar, Kevlar, Tyvek, and Lycra. It was founded in 1802 as a gunpowder mill and in 2017 it merged with Dow Chemical Company to create DowDuPont. It has since spun off some businesses and become the new DuPont.