. "4.862E9"^^ . "3.5734E10"^^ . . "3.489E9"^^ . . . "1802Z"^^ . "5.1499E10"^^ . . "64000"^^ . "1.6286E10"^^ . . "E. I. du Pont de Nemours and Company, commonly referred to as DuPont, is an American chemical company that was founded in July 1802 as a gunpowder mill by \u00C9leuth\u00E8re Ir\u00E9n\u00E9e du Pont.In the 20th century, DuPont developed many polymers such as Vespel, neoprene, nylon, Corian, Teflon, Mylar, Kevlar, Zemdrain, M5 fiber, Nomex, Tyvek, Sorona and Lycra. DuPont developed Freon (chlorofluorocarbons) for the refrigerant industry, and later more environmentally friendly refrigerants."@en . "E. I. du Pont de Nemours and Company"@en .