Close-up view of DuPont employee Mike McCall feeding nylon chips into the hopper of a five-position spinning machine used at the DuPont pilot plant in Wilmington, Delaware during the early stages of nylon production and…

Close-up view of a 50-pound autoclave and polymer casting equipment used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. During production, a…

General view of a glass cell used for the preparation of polyamides during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. Predating the autoclave developed…