Sartomer Company named Dr. Luigi Colantuoni president, replacing Nicholas Trainer, who retired after 37 years with the company.       Dr. Colantuoni will report to Hugues Woestelandt, chief executive officer of Total Specialty Chemicals Branch, Sartomer’s parent company. He will be responsible for general management of Sartomer, with $470 million in annual sales, 12 manufacturing sites and more than 600 employees. He will also be responsible for growing the hydrocarbon resins business in North...