Affiliation: | (1) Central Research and Development Department, E.I. du Pont de Nemours and Company, Experimental Station, 19898 Wilmington, Delaware, USA;(2) Automotive Products Department, E.I. du Pont de Nemours and Company, Marshall Laboratory, 19100 Philadelphia, Pennsylvania, USA;(3) Polymer Products Department, E.I. du Pont de Nemours and Compnay, 43113 Circleville, Ohio, USA |