NEW YORK (Standard&Poor's) Nov. 28, 2007--Standard&Poor's Ratings Services today assigned its 'A' senior unsecured debt rating to E.I. DuPont de Nemours&Co.'s $750 million 5.0% senior unsecured notes due 2013. Proceeds will be used for general corporate purposes including refinancing. At the same time, we affirmed all our ratings on Wilmington, Del.-based DuPont, including the 'A' corporate credit rating. The outlook is stable. "The ratings reflect DuPont's excellent business risk profile as one of the world's premier chemical producers, with annual sales of close to $30 billion, and an intermediate financial risk profile," said Standard&Poor's credit analyst Cynthia Werneth. DuPont's key business strengths include leading technology and cost positions in an exceptionally broad
