WILMINGTON, Del. (Oct. 13)—DuPont and Lianyungang Zhongshan Spandex Co. Ltd. are planning a 50/50 joint venture in China to make and sell generic spandex elastomeric fibers. Terms were not disclosed. This venture is the first alliance DuPont has formed in China to pursue its generic spandex strategy, but it is the third in a series planned by DuPont in key growth markets. The new venture will nearly double annual capacity at Lianyungang Zhongshan´s plant in Jiangsu Province to 7,500 metric tons from 4,000 tons, focusing primarily on the Chinese market, DuPont said. Prior to this announcement, DuPont formed similar alliances with Saehan Industries Inc. in Kyungsang, South Korea, and Shinkong Synthetic Fibers Corp. of Taiwan. Spandex is the generic name for a man-made elastomeric fiber, invented by DuPont in 1958 and trademarked as Lycra. Technically, spandex—or elastane, as it is known in Europe—is a segmented polyurethane, according to DuPont.