Sartomer Company announced that effective June 1 (or as contracts allow), it will increase the prices of its monomers, oligomers, and photoinitiators by 10 percent.      According to Paul Elias, Sartomer’s business director of specialty products, the price increase is due to the rapidly rising costs of raw materials and energy, as well as increased packaging costs. Letters were sent to Sartomer’s customers at the end of April 2004 with further details on the price increase, Mr. Elias said.  ...