By Michael Lauzon Plastics News Downsview, Ontario-A worker died early today at polyurethane foam producer and converter Vitafoam Products Canada Ltd. of Downsview.The worker was found motionless in an industrial machine at 4 am on 21 June, according to a spokesman for the Ontario Ministry of Labour. Paramedics were called but they could not revive the worker.The ministry is investigating the incident, but had no further comment. CanWest News Services reported the worker died at a foam cutting machine. Company officials were not immediately available."