Although Kingston briefly produced other fibers such as Dacron polyester, nylon was its principal product. Between 1992 and 2000, the plant’s bulked continuous filament (BCF) nylon yarn operations were expanded three times at a cost of more than $156 million. These expansions helped DuPont increase its share of the North American carpeting market by 35 percent. Kingston is also one of the company’s key research centers, with laboratories for plastics and chemicals as well as packaging systems. Among other successes, the Kingston Research & Business Development unit is responsible for the development of aseptic pouches, which give perishables a shelf life of six months with no refrigeration.