LEVERKUSEN, Germany (May 7)—Bayer A.G. has named Ian Paterson, a 23-year Bayer veteran, president and CEO of its newly created Bayer Polymers L.L.C. business unit and head of Bayer Polymers Americas Region. The appointment came after shareholders approved a new corporate structure that organizes Bayer into five operating companies and a service company, all active under a management holding structure. Bayer Polymers, one of the five operating units, comprises the firm's rubber, polyurethane, plastics and coatings/colorants businesses. A native of Scotland, Paterson started at Bayer in 1980 as product manager for plastics in England and has held a variety of managerial posts in polymers, most recently he was in charge of Bayer's activities in Brazil.